GMT360

GMT 360 is a former midsize truck platform developed and manufactured by General Motors. Sold between the 2002 and 2009 model years, GMT 360 and its variants were the third generation of mid-size SUVs produced by the company. Outside of the United States, it was sold alongside its GMT 330 predecessor until 2005.

GMT 360
2005 Isuzu Ascender
Overview
Manufacturer	General Motors
Also called	GMT 305 GMT 368 GMT 370
Production	2001-2009
Assembly	Moraine, Ohio (GMT 360) Oklahoma City, Oklahoma (GMT 370) Lansing Craft Center (GMT368 SSR)
Body and chassis
Class	Sport utility vehicle Pickup truck (SSR)
Layout	Front Engine, RWD/AWD/4x4
Body style(s)	5-door wagon 5-door retractable-roof wagon (XUV) 2-door convertible pickup truck (SSR)
Vehicles	Buick Rainier Chevrolet SSR Chevrolet TrailBlazer (EXT) GMC Envoy (XL, XUV) Isuzu Ascender (EXT) Oldsmobile Bravada Saab 9-7X
Powertrain
Engine(s)	4.2L Atlas I6 5.3L Vortec V8 6.0L LS2 V8
Transmission(s)	4L60-E/4L65-E 4 Speed Automatic
Dimensions
Wheelbase	113 in (2,870 mm) (GMT 360) 116 in (2,946 mm) (GMT 368) 129 in (3,277 mm) (GMT 370/305)
Chronology
Predecessor	GM GMT330 platform
Successor	GM Theta platform (GMT360) GM Lambda platform (GMT370)

The platform would go on to become one of the most rebadged General Motors product lines in modern history; sold by every GM division except Cadillac, eleven versions of the architecture was marketed under six marques. Chevrolet sold two SUVs and a pickup truck; GMC, three SUVs (one, with a retractable roof); Isuzu, two SUVs; following the closure of Oldsmobile, its SUV product line was revived by both Buick and Saab.

Following the cancellation of a planned SUV replacement (codenamed GMT 361), the platform was replaced by two CUV platforms. The short-wheelbase GMT360 was replaced by the Theta platform while the long-wheelbase GMT370 was replaced by the Lambda platform (also replacing the GM U platform minivans). Production ended in late December 2008.

Chassis overview

The first GM SUV platform not derived from pickup trucks, GMT360 retained body-on-frame construction with fully boxed hydroformed frame rails, A 113-inch wheelbase was used, with GMT 370 released as a long-wheelbase variant (using a 129-inch wheelbase). Rear-wheel drive was standard, with part-time four-wheel drive and all-wheel drive as options.

The platform used double wishbone independent suspension in front, with a 5-link solid rear axle; auto-leveling air suspension was offered as an option for some versions.

Originally developed for the Atlas series of inline engines, in 2003, a 5.3L V8 was introduced as an option, with a 6.0L V8 becoming an option in 2006. The 6.0L engine (RPO LS2) was used in the Trailblazer SS model and the Saab 9-7x Aero only, and was rated at 395 hp. All engines were coupled to the 4L60-E/4L65-E 4-speed automatic transmission. re

Applications

GMT 305

• 2004–2005 GMC Envoy XUV

GMT 360

• 2002–2009 Chevrolet TrailBlazer
• 2002–2009 GMC Envoy
• 2002–2004 Oldsmobile Bravada
• 2003–2008 Isuzu Ascender
• 2004–2007 Buick Rainier
• 2005–2009 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

Gallery

• 
  Buick Rainier
• 
  GMC Envoy XL
• 
  Chevrolet TrailBlazer
• 
  Chevrolet SSR
• 
  2006 Saab 9-7X
• 
  Isuzu Ascender
• 
  Oldsmobile Bravada

See also

• GM GMT platform