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Main article: List of GM platforms
Manufacturer General Motors
Production 1988–2000
Body and chassis
Class Full size truck
Layout FR/AWD
Body style(s) 4-door wagon
2-door wagon
4-door extended wagon
2-door pickup truck
4-door pickup truck
Predecessor C/K Series
Successor GMT800

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 2000. This was the first GMT designation for the C (RWD) and K (4WD/AWD) full-size trucks and SUVs.

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


Basic platform Years Model Notes
GMT400/480 1988–2000 Chevrolet C/K
1988–2000 GMC C/K
GMT410 1992–1999 Chevrolet Suburban
GMT415 1992–1994 Chevrolet K5 Blazer
GMT420 1995–2000 Chevrolet Tahoe
GMT425 1992–1999 GMC Suburban
GMT430 1992–2000 GMC Yukon
GMT435 1999–2000 Cadillac Escalade

See also[edit]