GM H platform (1986)

Main article: GM H platform

GM H Platform (FWD)
1986 Buick LeSabre
Overview
Manufacturer	General Motors
Also called	H-body
Production	1986–1999
Body and chassis
Class	Large car (E) platform
Body style(s)	2-door Coupé 4-door sedan
Vehicles	Buick LeSabre Oldsmobile Eighty-Eight Pontiac Bonneville
Related	GM C platform GM G platform (FWD) GM K platform (FWD)
Powertrain
Engine(s)	Gasoline: Buick V6
Transmission(s)	4-speed THM440T4 automatic 4-speed 4T60-E automatic 4-speed 4T60E-HD automatic 4-speed 4T65-E automatic 4-speed 4T65E-HD automatic
Dimensions
Wheelbase	110.8 in (2,814 mm)
Chronology
Predecessor	GM B platform GM G platform (RWD)
Successor	GM G platform

The H platform, or H-body designates a General Motors front-wheel-drive full-sized automobile platform beginning in 1986. It is related to the C, G and K platforms.

Previously the H platform designation was used for unrelated rear-wheel-drive compact cars.

Many H-bodies used GM's large 3800 V6, and supercharged versions were available from 1991 to 1999. They originally came in both 2-door and 4-door versions, but the four-door sedans were dramatically more popular, and two-door models were dropped by 1992.

According to one source,^[1] the H-Body sedans were the next "big thing" for GM, and development cost more than $3 billion, which is on par with roughly how much Ford invested in the Ford Taurus. Both the H-body sedans and the Taurus (based on the D186 platform) were launched fully in 1986.

Starting in 2000, all H-body vehicles moved to the G platform, however GM continued to call it the H platform.^[2]

Vehicles

Years	Model	Previous platform	Next platform
1986–1999	Buick LeSabre	GM B platform	GM G platform
1986–1999	Oldsmobile 88/LSS	GM B platform	Retired
1987–1999	Pontiac Bonneville	GM G platform (RWD)	GM G platform

General Motors platforms

In Production

Cars	GM4200 SCCS Gamma Delta Epsilon Alpha Zeta Omega Y

Trucks/SUVs	GMT355 GMT610 GMTK2 Theta Lambda U

Out of Production

Cars	A (FWD, RWD) B C (FWD, RWD) D E F G (FWD, RWD) GM2900 H (FWD, RWD) J K (FWD, RWD) Kappa L M N P Premium S Sigma T (FWD, RWD) V (FWD, RWD) W X (FWD, RWD) Y Z

Trucks/SUVs	Advance Design Truck AK Series Truck C/K Series GMT325/330 GMT360 GMT400 GMT800 GMT900 Task Force Truck

References

↑ 1 - Taub, Eric (Nov 1991). Taurus: The Making of the Car That Saved Ford. E. P. Dutton. ISBN 0-525-93372-7.
↑ Frame, Phil (16 January 1995). "GM H CARS MOVE TO G PLATFORM". Automotive News. Retrieved 17 May 2013.

List of GM VIN codes

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