GM8 / GU1 / GU2 / GU4 / GU5 / GU6 ◑ Single-source

Buick · Regular Production Option

Axle ratios 2.56 / 2.41 / 2.73 / 3.08 / 3.23 / 3.42

Years 1970–76 Models 1

Documented applications

Full-Size — LeSabre / Electra / Wildcat →

• 1970–1976 ◑ Single-source

  All lines

This page aggregates every documented appearance of GM8 / GU1 / GU2 / GU4 / GU5 / GU6 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.