GM GMT platform

GMT is the name used for all of General Motors' SUV/truck automobile platforms. With the introduction of more and more crossover vehicles labeled with the "GMT" nomenclature, it can be argued that only vehicles under the 300, 400, 500, 600, 800 and 900 series are "true" GM trucks. However, even these lines are being crossed, as Theta platform vehicles are being given GMT 300 designations, as well as upcoming Lambda vans being given GMT 500 designations. The Lambda sport wagons will also carry GMT 900 nomenclature, but are unibody vehicles.

GMT 001

:Main|GM Delta platformThe GMT 001 name is technically applied to the Chevrolet HHR, based on the GM Delta platform.

GMT 190

The GMT 190 name was applied to the Suzuki Vitara-derived Chevrolet Tracker.

GMT 191/192/193

:Main|GM Theta platformThe GMT 191/192 names are applied to the Chevrolet Equinox and similar Pontiac Torrent, respectively, while GMT 193 is used for the Suzuki XL7.

GMT 201

:Main|GM U platformThe GMT 201 names are applied to the GM U-based minivans. These include the Chevrolet Uplander, Pontiac Montana SV6, Buick Terraza and Saturn Relay. These will be phased out with the introduction of vehicles based on the GM Lambda platform.

GMT 250

Applications:
* Buick Rendezvous
* Pontiac Aztek

GMT 265/267

:Main|GM Sigma platformThe GMT 265/267 is a crossover SUV platform based on the GM Sigma platform and used by the Cadillac SRX.

GMT 325/330

:Main|GMT325The GMT 325/330 series was a compact truck line including mid-size pickup trucks and SUVs. It debuted in 1982, though it wasn't given its GMT name until the late 80's with the introduction of the new GMT 400's. This was GM's mid-size truck and SUV line, designated by an S (RWD) or T (4WD/AWD).
* GMT 325
** Chevrolet S10
** GMC Sonoma

* GMT 330
** Chevrolet Blazer
** GMC Jimmy
** GMC Envoy
** Oldsmobile Bravada

GMT 355

:Main|GMT355The GMT 355 is the redesigned S/T compact pickup truck design and the successor to the GMT 325 series. GMT 355s are built in Shreveport, Louisiana and Rayong, Thailand. GMT 355 uses an A-arm independent suspension in front and live axle with leaf springs in the rear. The Atlas straight-4 and straight-5 engines are widely used, with a V8 rumored in the future. A 4-speed automatic and 5-speed manual transmission are also specified.

The GMT 355 platform was actually a joint-venture with Isuzu, though most of the design was done by Isuzu. Part of the agreement was that GM had to sell it first in the U.S., to be sold legally as an Isuzu. Despite its close numbering to the GMT 360 (also part of the S/T family) series, the two programs share nothing.

The GMT 345 is the derivative of this platform as used on the Hummer H3.

GMT 345 Applications:
* Hummer H3

GMT 355 Applications:
* Chevrolet Colorado
* GMC Canyon
* Holden Rodeo
* Isuzu D-Max (Isuzu i-Series)

GMT 360

:Main|GMT360The GMT 360 debuted in 2002 with the Chevrolet TrailBlazer, GMC Envoy, and Oldsmobile Bravada, as the next generation S/T mid-size SUV's. While it replaced the GMT 330, it shared nothing with the older platform. It used hydroformed frame rails like the larger GMT 800, and was built for GM's "Atlas" inline engines. The GMT 360 (and the long-wheelbase GMT 370) went on to be one of the most rebadged GM products with six different marques represented.

The 360 uses an independent suspension in front. In the rear, the Ascender and TrailBlazer use a 5-link rear suspension, while the rest have an air suspension. A 4-speed automatic is the only transmission available.

This line is scheduled for replacement during 2009, however, possibly with crossover vehicles based on the Epsilon, Lambda, or Sigma platforms. The GMT 361 replacement program has been cancelled at this point.

Applications:
* GMT 305
** 2004–2005 GMC Envoy XUV
* GMT 360
** 2002–2008 Chevrolet TrailBlazer
** 2002–2008 GMC Envoy
** 2002–2004 Oldsmobile Bravada
** 2003–2007 Isuzu Ascender
** 2004–2007 Buick Rainier
** 2005–2008 Saab 9-7X
* GMT 368
** 2003–2006 Chevrolet SSR
* GMT 370
** 2002–2006 Chevrolet TrailBlazer EXT
** 2002–2006 GMC Envoy XL

GMT 400

:Main|GMT400The GMT 400 and similar GMT 480 is the platform for the 1988-1998 full-size pickup truck platform. The GMT 410, GMT 420, GMT 425, and GMT 430 were used for full-size SUVs from 1991 to 1999. This was the first GMT designation for the C (RWD) and K (4WD/AWD) full-size trucks and SUV's.

GMT 400 frames were built by A.O. Smith Automotive Products, Dana Corporation, and Tower Automotive.

Applications:
* GMT 400/480
** General Motors C/K Trucks
** GMC Sierra
** Chevrolet Silverado
* GMT 410/420/425/430/435
** Chevrolet Suburban
** Chevrolet Tahoe
** GMC Suburban
** GMC Yukon
** Cadillac Escalade

GMT 510

:Main|GM Lambda platformThe GMT 510 series were to be based on the GM Lambda platform, and hence are unibody vehicles, rather than vehicles with frames, and are unrelated to the GMT 530/560 series. They would have complemented the GMT 960 series, which are Lambda sport wagons. Due to poor sales of all U-Body vans, this series has been canceled.

GMT 530/560

The GMT 530/560 series of trucks are medium-duty commercial trucks, such as the Chevrolet Kodiak and GMC Topkick.

GMT 600

The GMT 600 was used in the full-size Chevrolet Express vans. The currently used version is the GMT 610. A slightly upgraded GMT 620 is in development.

Applications:
* Chevrolet Express
* GMC Savana

GMT 800

:Main|GMT800The GMT 800 and similar GMT 880 is the basis for the current Chevrolet Silverado full-size pickup truck. The derived GMT 820 and GMT 830 is used in the Suburban, among other full-size SUVs. This is the successor to the GMT 400 series of C/K pickups and SUV's.

Applications:
* GMT 800/880
** Chevrolet Silverado
** GMC Sierra
* GMT 820
** Cadillac Escalade
** Chevrolet Tahoe
** GMC Yukon
** Hummer H2 (A unique platform, but based on the 820)
* GMT 830
** Cadillac Escalade ESV
** Chevrolet Suburban
** GMC Yukon XL
* GMT 805
** Chevrolet Avalanche
* GMT 806
** Cadillac Escalade EXT

GMT 900

:Main|GMT900The GMT 900 debuted at the 2006 North American International Auto Show, as the next generation C/K full-size pickup's and SUV's, and replacements for the GMT 800's. The first GMT 900 vehicle was the Chevrolet Tahoe, which arrived at dealers in January 2006. The GMC Yukon (regular and Denali) and Cadillac Escalade soon followed. Chevrolet Avalanches and Suburbans, GMC Yukon XL's, and Cadillac Escalade ESV and EXT were at dealers July 2006.

Applications:
* GMT 900
** Chevrolet Silverado Regular Cab/Extended Cab/Crew Cab (GMT 901)
** GMC Sierra Regular Cab/Extended Cab/Crew Cab (GMT 902)
** Chevrolet Silverado HD (GMT 911)
** GMC Sierra HD (GMT 912)
** Hummer H2 Crew Cab (GMT 913)
* GMT 920
** Chevrolet Tahoe (GMT 921)
** GMC Yukon (GMT 922)
** Cadillac Escalade (GMT 926)

* GMT 930
** Chevrolet Suburban (GMT 931)
** GMC Yukon XL (GMT 932)
** Cadillac Escalade ESV (GMT 936)
* GMT 940
** Chevrolet Avalanche (GMT 941)
** Cadillac Escalade EXT (GMT 946)

GMT 960

:Main|GM Lambda platformThe GMT 960 series are based on the GM Lambda platform, and hence are unibody vehicles, rather than vehicles with frames, and are unrelated to the GMT 900 series.

Applications:
* Saturn Outlook (GMT 966)
* Buick Enclave (GMT 967)
* GMC Acadia (GMT 968)
* Chevrolet Traverse (Scheduled for 2009)

External links

* [http://www.GM-Trucks.com GM-Trucks.com]