Ford Bronco Fourth Generation

1987 to 1991
Overview
Production	1987–1991
Body and chassis
Body style	Full-size SUV
Powertrain
Engine	300 cu in (4.9 L) Straight-6 302 cu in (4.95 L) 302 V8 351 cu in (5.75 L) Windsor V8
Transmission	5-speed M5OD-R2 manual 3-speed C6 automatic 4-speed AOD automatic 4-speed E4OD automatic
Dimensions
Wheelbase	104.7 in (2,660 mm)
Length	180.5 in (4,580 mm)
Width	79.1 in (2,010 mm)
Height	1987–89: 74.0 in (1,880 mm). 1990–91: 74.5 in (1,890 mm)

In 1987, the body and drivetrain of the fullsize Bronco changed, as it was still based on the F-Series. The new aero body style reflected a larger redesign of many Ford vehicles for the new model year. By 1988, all Broncos were being sold with electronic fuel injection (first introduced in 1985 with the 302). In 1991, a 25th Silver Anniversary Edition was sold featuring special badges, Currant Red paint and a gray and red leather interior. A Nite edition, similar to that on the F-Series, was also available in 1991 and 1992, the 91's tend to be rarer. All Broncos were built at the Michigan Truck Plant in Wayne, Michigan on the same line as the F-150.

The 5-speed M5OD-R2 transmission was added as an option for 302-powered Broncos in 1987. 1988-89 351W trucks received a c6 transmission. For 1990, the electronically-controlled E4OD automatic overdrive came standard on the 351W, and 300. The AOD was mated with the 302 from 1987-1990. By 1991 All engines received the E4OD.

A V8 engine and automatic transmission were standard in Eddie Bauer, Nite, and Silver Anniversary trucks.