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, starting in 2009, a 5. 3L V8 was added. 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.
GMT 355 Applications:
Chevrolet Colorado
GMC Canyon
Holden Rodeo
Isuzu D-Max (Isuzu i-Series)
Hummer H3
[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:
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
2003-2007 Isuzu Ascender 7-passenger