GM GMT platform

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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.

1990s 2000s
0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9
Crossover GMT001 (Δ)
GMT190 GMT191 (Θ)
GMT201 (U) GMT960 (Λ)
GMT265 (Σ)
Minivan GMT250 (U) GMT510 (Λ)
Compact pickup GMT325 GMT355
Compact SUV GMT325 GMT360
Full-size pickup GMT400 GMT800 GMT900
Full-size SUV GMT400 GMT800 GMT900
Van GMT600
Truck GMT530/560

Contents

[edit] GMT 001

Main article: GM Delta platform

The GMT 001 name is technically applied to the Chevrolet HHR, based on the GM Delta platform.

[edit] GMT 190

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

[edit] GMT 191/192/193

Main article: GM Theta platform

The GMT 191/192 names are applied to the Chevrolet Equinox and similar Pontiac Torrent, respectively, while GMT 193 is used for the Suzuki XL7.

[edit] GMT 201

Main article: GM U platform

The 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.

[edit] GMT 250

Applications:

[edit] GMT 265/267

Main article: GM Sigma platform

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

[edit] GMT 325/330

Main article: GMT325

The 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).

[edit] GMT 355

Main article: GMT355

The 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:

GMT 355 Applications:

[edit] GMT 360

Main article: GMT360

The 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:

[edit] GMT 400

Main article: GMT400

The 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:

[edit] GMT 510

Main article: GM Lambda platform

The 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.

[edit] GMT 530/560

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

[edit] 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:

[edit] GMT 800

Main article: GMT800

The 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:

[edit] GMT 900

2007 GMT900 Cadillac Escalade
2007 GMT900 Cadillac Escalade
Main article: GMT900

The 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 of 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:

[edit] GMT 960

Main article: GM Lambda platform

The 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:

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General Motors platforms
List of GM platforms
Current
Cars
Delta • Epsilon • K (fwd) • Kappa • Premium • Sigma • W • Y • Zeta
Trucks/SUVs
GMT360 • GMT900 • Lambda • Theta • U
Historic
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GM2900 • GM4200 • A (fwd) • A (rwd) • B • C • D • E • F • G (fwd) • G (rwd) • H (fwd) • H (rwd) • J • K (rwd) • L • M • N • P • T • V (fwd) • V (rwd) • X • Y • Z
Trucks/SUVs
Future
Cars

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