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The Book's For Sale!

It's official - I've sent in the copy, photos and captions to the publisher, and Rapid Transit Series Buses: General Motors and Beyond is on its way to print!

I've still yet to see the test print which, according to plan, should arrive in the next few weeks. Once that's okayed, it's off to public printing! I'm currently hearing timeframes between January and March of 2008.

That said, the book's showing up on Amazon - and they're currently accepting pre-orders. I'm not trying to be glib, but I think there's some neat historical content within the publication. I'm not calling it perfect, but if you're a fan of transit, bus or GM history, you may really enjoy this publication.

Click here for the RTS book!

I'd also be appreciative in those willing to convince their local booksellers into stocking the book, too. If you're interested, pass on ISBN number 978-1583882092. I'd be willing to autograph copies lying on bookshelves, too. I'd be willing to speak with any stockists and answer any questions, provided they contact me at:

RTSHistory (at) gmail.com
(remove the spaces and replace the (at) with @)

Thanks for all the support and interest!

-Evan
Read More … The Book's For Sale! Read more...

Cadillac SRX - Wrapup


Goodbyes are always bittersweet, but it's hard to place what our departure from Cadillac's SRX was - was it more bitter or sweet?

Certainly, our time with the sporty car wagon crossover-utility had its sweet moments. Like we said in the beginning, Cadillac's done quite a bit up in front to revise an otherwise dreary interior. Trim materials felt solid, and the overall appearance of the IP was quite impressive.

Tick the $1,400 option box for the luxury seating pacakge, and front passengers will find themselves coddled by the most comfortable seats GM's ever purchased from a supplier. They're bolstered in just the right spaces but remain plush enough to provide occupants (provided they're not driving, mind you) the perfect space for a cat nap.

But then there's the bitter. Those front seats are great, but the second-row is a cement slab rolled in leather. That giant moonroof was great for open-weather cruising or for navigating safari-style, but it was also prone to enter into resonance while closed. Not so much so that it rattled, but enough so to create an annoying high-pitched sqeak.

That wasn't the only noise issue; in fact, Cadillac seemed to drop the ball in terms of NVH engineering. Sure, window seals kept road noise to a minimum, but engineers seemed to forget about placing insulation on the firewall: every noise that occured underhood poured into the cabin with little, if any, abatement.

This wouldn't have been a problem, but the valvetrain on this particular example of the 3.6-liter V6 amplified engine noise to a new level. Some praise the motor for being relatively smooth (which it is), but we fail to see where this engine sets new records for NVH. Hopefully the new 3.9-liter with direct-injection improves on this; perhaps it too will rectify the occasional starting issues we had with the mill. On some cold starts (by cold we mean engine temperature; it was actually in 70-90 degree farenheit climates), the motor rocked side to side on its mounts, shuddering the entire vehicle. It almost felt as if it was missing or timed improperly, but the tachometer read a constant speed. No engine codes were triggered, but it would have been interesting to read the OBD-II output to see what was going on.

Even more dissapointing is the SRX's fuel economy. The 3.6-liter V6, coupled through a 5-speed automatic and an all-wheel drive system delivered a combined economy of around 14.8 mpg - 17.4 if we put it on a long stretch of highway. Not as horrible as a Hummer H1, mind you, but in comparison, the '07 Silverado 4x4 with a 5.3-liter V8 averaged a combined fuel economy of around 16 mpg. You do the math while we craft an adjective for the SRX's performance: poor.

So, given the money, would the GMT Blog buy an SRX?

Perhaps, so long as we opted for these few options:

-Northstar V8, 6-speed automatic and no all-wheel drive. With Stabilitrak and traction control mitigating virtually all slip-n'-slide situations, why deal with the extra weight and fuel consumption of a transfer case and an extra differential?

-Magnetic Ride Control - the SRX doesn't ride all that bad, so long as you're not crossing pavement sections that lift above others. Magnetic ride control helps levy that, and if you live in a northern state, it's a must-buy.

Are there other doo-dads that we'd like? Sure, what techophile wouldn't love the sunroof or the DVD-based sat-nav? Ultimately, we prefer mechanical competence over technological sophistication, and we hope Cadillac can improve on this point for future crossovers.
Read More … Cadillac SRX - Wrapup Read more...

The Divorce Is (almost) Final: Isuzu Leaves GM Commercial Truck Partnership


If you've carefully read the news or regularly Googled "Isuzu" (I'll admit it; I haven't), you may have caught wind of the fact that, as of Wednesday, the GM-Isuzu Commercial Truck partnership is no more.

This isn't at all surprising. Since the sale of GM's stake of Isuzu to Toyota, steps have been made that hinted such a divorce was waiting in the wings. First, there's the new factory Isuzu's building in the South, followed closely with rumblings that the next Duramax V8 won't be Isuzu-engineered (that much's true). News followed soon after that Isuzu would be working briskly on putting diesel engines into Toyota's European lineup - something GM did quite frequently in order to offer oil-burning Opels on the continent.

But, the announcement that Isuzu's CV sales (isn't that all they have left?) in the U.S. will now be handled by their own organization out of California.

Well, not exactly. According to the Janesville Gazette, assembly of gas-powered W-series trucks isn't affected. A factory spokesperson claims the dissolved partnership involves only the sale, not the manufacture, of commercial vehicles.

So what's with the new plant then? No word as of yet, but we can look at it as one of two likely scenarios:

1. Isuzu intends on dissolving the manufacturing liason with GM, and moving all W-series and F(T)-Series assembly to the new factory

-or-

2. This is something totally unrelated to GM but relevant to Toyota. We've heard rumblings of diesel-powered Toyota Tundras in the pipeline; what if instead of having Hino or Caterpillar (on odd rumor, for sure) building the motors Isuzu's placed in charge?

We're waiting on follow-ups with GM and Isuzu representatives to see what impact this will have on the sale of W- and T-series trucks through GM dealers, but one early report claims Isuzu will still offer the "class 3-5" trucks (re: W-Series) through a limited number of Chevrolet and GMC outlets.
Read More … The Divorce Is (almost) Final: Isuzu Leaves GM Commercial Truck Partnership Read more...

2008 Isuzu Forward - A Look at the GM T-Series To Come?

When Isuzu launched the new 'Hexacube' (designer speak for 'hella boxy') N-Series six to eight months back, they promised that the next Forward (F-Series/T-Series) would utilize a modified version of the square cabin.






Boy, they weren't kidding.

The new Forward launched on Isuzu's website last week, and it looks almost identical to the the N-/W-Series. Identical. If there's any change, it's slighty beefier, particuarly on the 11-ton FSR model. For whatever reason, the added size, weight and sight glass make the cab actually seem truck-worthy.


The interior's almost carry over from the N-/W-Series, meaning operators will now have a refined interior with plastic-trimmed surfaces, an ergonomic dash, and - a new first - a passenger-side airbag.
But forget about the rest of Isuzu's jubilant press release. Why? Because should this cab make it to North America as the next GM T-Series, the rest of the underpinnings won't. Which is a shame; instead of featuring a clutchless manual transmission and 4-bag air suspension, the cab will lie on top of a modified GM medium duty frame. I'll guarantee you that chassis will be the epitomy of the word 'conservative'.

Even that's a risky bet. The medium-duty cabover market (particuarly in the class 6-8 segment) is a quickly shrinking one, and with low production and sales of the T-Series, it wouldn't be surprising for GM to drop it altogether. There's also the possibility of Isuzu suddenly dropping its GM alliance for that of its new owner (re: Toyota), and the new questions stemming from Navistar's talks to purchase GM's medium duty operations.

In the meantime, we sit and wait to see what happens. If nothing else, maybe we'll see revisions to the Giga (other than this horrid rhinoplasty) that brings it in line with the rest of Isuzu's COEs.

Read More … 2008 Isuzu Forward - A Look at the GM T-Series To Come? Read more...

WRAP-UP: 2007 Silverado LT2 Z714x4

Four months ago, I left home seeing a '07 Suburban LT2 4x4 parked in the driveway, and I returned to find an '07 Silverado LT2 Z71 4x4 occupying approximately the same amount of space. Consider this: both use the same (approximate) GVWR, platform, 4x4 system and 5.3-liter V8 with cylinder deactivation.

The more things change. C'mon - couldn't they have at least ticked the box for the VortecMAX 6.0-liter before handing it off to the GMT Blog?

Still, even having driven both short- and long-wheelbase GMT 900 utilities, the Silverado makes for a different yet satisfying drive. The changes between it and its SUV siblings are relatively small, yet the differences are enough to make it much more endearing to the weirdo progressive-nonconformist that I am.

First and foremost: I love the pickup-only dashboard. Yes, it's only on the "lesser trims" (W/T and LT), but I find it much easier to live - and drive - with than that on upper trim levels or on Tahoes and Suburbans. HVAC and audio controls - consisting of a multitude of tiny buttons - are now at a level where they can be inspected with minimal distraction. The biggest improvement is the new location of the transfer case switch (right-hand side of steering column). I can now actually see what drivetrain mode I've selected, as opposed to ducking behind the turn signal switch to read the miniscule LED indicators.

I've never owned a car without a front bench seat yet, so I'm enthralled that this truck has them as well. It took GM nearly ten years to copy what Dodge started, but the new span-to-span seat features spacious storage areas built within. The armrest features clips for papers and space for three Big-Gulps (simultaneously). In-seat storage keeps valuables both safe and (thanks to a 12-volt outlet) charged.

I'm also surprised at the truck's ride prowess. Normally, I've found most any pickup to ride harsher over broken surfaces than their SUV counterpart. Not so with the Silverado. Even with the off-road inspired Z71 package, the suspension soaks up rough pavement, potholed gravel and rough trail much better than the base Suburban did.

On the downside, room for rear seat passengers in the extended cab is tight, and the steering feels slightly sloppier than what was in the Suburban. Although the truck remains stable, the increase in feedback transmitted via the steering rack to the point where it almost feels twitchy. I'll attribute this mainly due to the weight bias of a pickup being over the front axle, but I'll be totally surprised - and in love - with a pickup that exhibits little to none of such bump steer.

GM claims its full-size pickup sales are least effected by gas prices than any other competitor, but that didn't prevent them from aiming for good fuel economy. Let's face it - at 15-16 mpg city and gas retailing at close to $3.30 a gallon, it wasn't cheap to keep the grey behemoth's thirst quelled, but the fuel economy was decent for a full-size pickup. Consider this - the V6 SRX that's currently in the driveway gets the same fuel economy, if not worse, despite its smaller motor and stature.

Some attribution for the reasonable fuel economy stems from the "Active Fuel Management" (re: cylinder deactivation), but my gripe with GM's system continues here. No, it's not noticible while switching between modes, nor does it impede accelleration all that much. My problem lies with the fact that it only seems to switch to four-cylinder mode when coasting. This system was designed to switch on during light accelleration as well, but no matter how gently the accellerator was touched, the 5.3 jumped back into eight-cylinder mode.

GM, we know performance is important, but c'mon - can't you give us an economy mode? Can't we (those who pay not only for the truck but for its fuel) a choice between balls-out performance and miserly economy? May I suggest a simplistic button that switches between two types of calibration? And may I also join the groves of armchair quarterbacks and consumers alike calling for the roll-out

My other qualm is surprising: the interior. Yes, I know I praised it not four paragraphs above, but there's still considerable room for improvement. The GM Truck Blog was invited out to GM's Milford Proving Grounds to flog their trucks against the competition. You'll hate me from a domestic-purist perspective, but from a 'all vehicles have an equal chance' point of view, Toyota's new Tundra should quickly become a benchmark for its interior, if nothing else. I've never been in a truck with so many creative storage compartments, including those in doors, armrests, seats, instrument panels, and elsewhere.

I'm also happy to see that an organized center console, capable of hanging file folders, has returned to the segment after the death of the Sierra Professional. Altogether, outside of switchgear, GM should - no, must blow this interior away when it comes to a mid-cycle refresh for the GMT 900.

But in terms of ride quality, performance and fuel economy, the Silverado's hard (if not impossible) to beat. It's been said about previous iterations, but it remains true for this generation of Silverado: it's one rock-solid package.
Read More … WRAP-UP: 2007 Silverado LT2 Z714x4 Read more...

INTRODUCTION - 2007 Cadillac SRX4



Is it a car? Is it a wagon? No, it's Superman...err, the SRX. Honestly, Cadillac's second stab at some sort of sport-utility is just as androgenous as Audi's Allroad. Some describe it as a jacked-up CTS wagon; as it rides on the same Sigma platform, it's actually just that (which brings up the odd possibility of making an AWD CTS. Hmmm...).

The last time a SRX fell into my hands was in 2003, eight months after they began rolling off the line in Lansing. That particular vehicle was completely loaded; Northstar V8, AWD, three-row seating, panoramic moonroof, etc.

Despite the content levels and the atmospherically-high pricetag, it wasn't a knockout.

Accelleration and performance was dogged by both the AWD and a slow-shifting tranny, while the CTS-cloned interior was pleasant - if you have a fetish for hard, triangular-patterned black plastics.

Three years later, there's another one of Caddy's androno-wagons sitting in the driveway. Already, I can state matter-of-factly that it blows the old one out of the lake.

The biggest change lies inside, with an all-new dash and instrument panel added for '07. After only two days of moderate driving, it's safe to say the changes are welcomed. Dash surfaces previously molded in rock-hard materials now have a pliable 'give' to them, while richly-stained birdseye maple (assuming it's real) and metalized-plastic vent trims break the otherwise-monotonous black interior. The seats resemble humanoid catchers' mitts; they're nicely bolstered and extremely comfortable even for long road trips. This particular example also is devoid of the third-row seating, which due to dimunitive size and a circus-like entry procedure, isn't missed.

Although this SRX doesn't have the Northstar or the new 6L50 six-speed, it does have GM's High-Feature 3.6L V6 with DOHC and VVT. It's good for nearly 255 hp and 254 lb-ft of torque, and for a GM motor, is actually happy to rev quickly. The French-built 5L40 five-speed auto's smooth, and when in sport mode, extremely quick-shifting. Manual mode is available - and while it won't replicate your favorite clutched-cog box, it does allow some personal control for hill grades or stopping.

Two things Cadillac hasn't touched are directly related to cost. The V6 SRX stickers at a meaty $38 grand, but with two option boxes ticked (V6 Premium Luxury Package and AWD), this example fetches just over $47,000. And with city fuel economy rated at 16 mpg, it looks to be a thirsty little bugger. Average fuel economy's still to early to call, but the in-dash multimeter's reading close to 17-18 mpg. At $3.18+ per gallon, it's nothing to sneeze at.

Still, there's two or three months left to really flog this thing, including some good trailering sessions. If nothing else, hopefully by then I can finally nail down what type of vehicle this thing is.
Read More … INTRODUCTION - 2007 Cadillac SRX4 Read more...

Can Your Rampside Do This? The Corvair AGL-4


My mind does the strangest things while I'm online - today, for instance, it steered me to a site on that blissfully bizarre military transporter, the M561 Gama Goat. What I ended up finding was footage of perhaps the sweetest Corvair prototype I've EVER seen (bar the Monza GT and SS, of course...). GamaGoat.com features a sales presentation for the AGL-4 (embedded below), perhaps the most capable Corvair 95 pickup ever built by GM.


Born in the early 1960s, AGL-4 was GM's stab at a 4wd, articulated cargo hauler. Albeit the exact history is unknown, the "Research Defense Laboratories" title suggests this project may have been pushed by Uncle Sam to replace that ubiquitous Willys/Ford product. The result: an articulated tilt-cab pickup, capable of scaling some apparently rigorous terrain. Defense Research Labs didn't have a good eye for marketing; you'll note none of the scenarios pictured in the film resemble warfare in any sort.


No further specifics on how this project transformed from the sweet semi-rigid you see here to that awkward six-wheel-drive creature the U.S. Army suffered with for ages. Interestingly, early Gama Goat prototypes did use the air-cooled Corvair mill for power, but the only piece of powertrain sourced from the General for production was the Detroit Diesel 3-53.


Read More … Can Your Rampside Do This? The Corvair AGL-4 Read more...

RTS Book - Coming Soon (As In A Year...)



I know I've not been a frequent blogger on this site.

But, there's a good reason. And a better reason why I'll continue not to be.

Over the past year, I've been researching the history and development of the Rapid Transit Series - or RTS - bus.

In a stroke of luck, Iconografix Publishing has taken an interest in the project, and wants to put it in print by this time next year.

In the meantime, however, I've got to continue researching, gathering images, and putting together a manuscript - within the next 6 months. All while continuing to work and attend sixteen credit hours of collegiate classes.

I'll be busy. We'll put it that way.

That said, thank all of you for your patronage, and I'll keep you all posted on the status of the book progress.

-Evan
Read More … RTS Book - Coming Soon (As In A Year...) Read more...

How To Build an Astro 95 Gas Turbine Special

Astro Test Vehicles @ GM Proving Grounds, 1969.  Can you find the Turbine?

So you've finally done it. You've gone and dropped nearly $100 for an extremely rare AMT 1/25 GMC Astro 95, including that vaulted and scarce turbine engine option.

Congratulations! You've not only captured a fine kit for your building hobby, but also my jealousy. I can only wish I could afford one.

Regardless, building the kit you hold in your hands won't give you a 'perfect' replica of the Astro Turbine demonstrator built by GMC. While the majority of what follows may constitute as "nit-picking" due to my obsessive nature regarding GMC history, there are a few major areas that need correcting before assembly.

That being said, here's at least a little bit of "detail oriented" specifics for how to "turbine" your rig.

http://img161.imageshack.us/img161/6783/astturbozh6.jpg

CAB DESIGN

1969 GMC Astro 95 Turbine

We may as well start here. Luckily, for the most part, any AMT Astro kit has a relatively early Astro cab that will work with this subject.

However, there are a few matters that will need correcting. Perhaps the most obvious are the "bus-type" mirrors that mount on the front corners of the cab, as opposed to the doors. Additionally, the "L"-shaped grab rails need to be replaced by a short, diagonal rail that runs from behind the front doors to slightly above the sleeper storage compartment.

Also worth noting are the long, bullet-style cab markers, and two individual train-type air horns on top of the cab.

Do note that the grille insert differs from stock Astros in that it has a vertical and horizontal pattern. More information relevant to the grille is given below.

PAINT SCHEME
The original issue of the Astro kit sported cover art that, in virtually all regards, was the Astro Turbine. A white cab, adorned with red wrap-around stripes that sandwiched a blue strip, is in fact the paint scheme GMC used on this particular truck.

What isn't shown, however, is a pseudo-grille section that was painted just above the actual grille opening. Throughout its 18-year production run, the physical grille opening on the Astro's cab was never enlarged, and the Turbine was no exception. GMC simply made the grille appear larger by using a painted section that matched the pattern used in the truck's custom grille.

And to further ease your painting woes, the remainder of the truck's chassis equipment - including battery boxes, steps, fuel tanks, suspension, and even wheels, were all painted a matching white. The front bumper, however, was chromed, as is the one included within the kit.

ORNAMENTATION
The Turbine had some minute ornamentation changes, that, if you're anal to no end for authenticity, you may want to consider applying to your rig.

The first - and most notable - is what to do with that "GMC" script on the front of the tractor. While stock Astros sported this on the metal header between the grille and the bottom of the windshield, the Turbine had this logo moved inside the grille. Position it as high within the grille as possible.

Astro Turbine Nameplate

Secondly, GMC modified the door nameplates. While normally they consisted of a large 'GMC' followed by a small "Astro 95" underneath, the Turbine changed the latter to read "Astro Turbine". Whether or not this detail is actually applicable, due to the scale size of the nameplate, is a debatable matter.



Finally, like all GM test vehicles, the Astro Turbine sported some corporate insignia just aft of the cab doors. "GMC TRUCKS" is spelled out, with a small box below it reading "GENERAL MOTORS CORPORATION". On the sleeper storage door, "ENGINEERING" is scripted in a similar font to the "TRUCKS" above, with a smaller "PONTIAC, MI" placed below that.

CHASSIS
While my eyes may deceive me, AMT's Astro kit represents a dual-axled tractor sporting a short wheelbase.

And while I don't have exact dimensional data for the Turbine, the photos I do have show a significant distance between the cab and the front of the trailer. Perhaps a 1/2" stretch of the frame rails would be in order to give an approximately correct look.

Another major error is with the truck's rear suspension. AMT provides the Astro with a walking-beam dual axle set-up, when, in fact, the Turbine was equipped with the "Astro-Aire" suspension.

At the time a relatively new design for GMC, this air-suspension system is better represented by the one included in AMT's GMC General or Chevrolet Bison kits. Consider swapping the former out for the latter - which may be a bit of work.

Note too the side-mounted accessories. There are no rear-mounted battery boxes, only small boxes encased with cab steps. Additionally, the Turbine does not sport the cylindrical fuel tanks, but a modified rectangular format. Perhaps the best bet to model these would be to fill in the notched step on the tanks AMT includes.

ENGINE
So what's the use of making a Astro Turbine look-alike if there's not actually a turbine under the cab? Absolutely none, if you ask me. I try to avoid curb-sides unless I'm extremely lazy.

Thus brings up a big issue. "What in the hell color do I paint the engine?"

While I trust the accuracy of the AMT of the past, I'm going to have to call "shenanigans" on this kit. The box illustration claims the motor included is the GT-404. As far as my records show, this particular Astro used the GT-309. It wasn't until the mid 1970s that an Astro SS was equipped with a GT-404, and sported a completely different paint scheme.

To date, the only images I have of the GT-309 are completely in two colors - black and white. While this is great for detail specifics, it doesn't allow for discernation of pigmentation.

That said, there are two routes to take with this:

  • Fire Red: Personally, I've only seen one GM gas turbine installed in a vehicle, and that was within Firebird I. This engine, the unrelated GT-302, was painted red, which also seems to match what AMT has depicted on the side of the box.

  • Detroit Diesel Green: The Astro Turbine was built sometime around 1970. What also happened that year was development of the GT-309, as well as all future commercial and industrial gas turbine development work, was sent from the GM Research labs to Detroit Diesel Allison (DDA). I've also seen a photo of a later GT-404 that was painted in DDA's infamous sage green. Subsequently, it could be argued that it would be an appropriate hue for the body.


You may be tempted to paint some additional metallic colors abound on the round sides of the engine, which are it's regenerative discs. In actuality, DDA was quite lazy, and painted the entire engine this color. Feel free, however, to detail the starter and control mechanisms on top of the engine in various shades of metal.

Also note the enlarged exhaust stacks. Unlike most trucks, these stacks were not chromed; nor were they even metallic in color. These were entirely painted white, in an attempt to call attention to the clean-burning nature of the turbine powerplant.

TRAILER
Like many of GM's dedicated show trucks of that era (ummm...the Astro and the Turbo Titan III, I suppose...), the Astro Turbine had it's own trailer, used both for display and for loaded testing.

Should you want to construct this for a complete display, finding a standard US-style box trailer should provide you a fine baseline for construction. This was painted silver, and had a wild red, white, and blue stripe wrapping around the sides of the van.

Special thanks go to Frederic Brede for providing the majority of these images.
Read More … How To Build an Astro 95 Gas Turbine Special Read more...

Coming Soon to a Speed Trap Near You - The 2007 Tahoe Police Package

2007 Tahoe Police Vehicle

While not mentioned in any part of GM's long lead press release for 2007, these are some of the first non-GM photographs of the new 2007 Chevrolet Tahoe Police Package.

Externally, the Tahoe is discernable from it's height - or the lack therefore of. While the GMT 900 is a huge vehicle, the stance of the Police Vehicle is a bit lower than civilian models, perhaps attributable to the 17" steel wheels, shod with P265/60R17 tires.



The rear portal for trailering equipment is closed by a plastic plug. No mention of trailering equipment, let alone towing specifications, exists on the Police Vehicle page on GM's Online Order Guide.

2007 Tahoe Police Vehicle Interior

Internally, the Tahoe sports twin cloth buckets up front, and lacks a center console. Dashboard trim is in a silver argent color, and the cluster has been changed to sport a certified 160 mph speedometer. The rear bench seat is trimmed in grey vinyl, and all floor carpeting has been replaced with black vinyl trimmings.

According to the order guide, the Tahoe Police Vehicle will only be available as a 2WD unit, powered by GM's 5.3L V8. Equipped with active-fuel management, E85 capability, and coupled through the 4L60-E automatic, this engine (code LMG) is identical in performance (320 hp, 340 lb-ft. torque) to the 5.3L available to the public.

Additionally, while GM's write up of the "Z56 Suspension" on the Police Tahoe cites it as being "police duty", comparison of it's specifications show no change in sway bar and shock absorber diameters from a standard 2WD Tahoe. As this is still preliminary information, this is not yet certain.

In addition to the above, Tahoe Police Vehicles will also come standard with:

  • High-capacity air cleaner

  • 160 amp alternator and 760 CCA battery (duals available as SEO)

  • Heavy-duty engine and transmission oil coolers

  • 3.73:1 Rear Axle Ratio

  • Skid plate package

  • "Police balanced" prop-shaft

  • Grounding studs and radio suppression straps

Read More … Coming Soon to a Speed Trap Near You - The 2007 Tahoe Police Package Read more...

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