General Motors H platform (FWD)

Main article: GM H platform

See also: List of GM platforms

GM H Platform (FWD)
1986 Buick LeSabre
Overview
Manufacturer	General Motors
Also called	H-body
Production	1986–1999
Body and chassis
Class	Large car (F) 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, 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.

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

References

• List of GM VIN codes