G66 Single-source

Buick · Regular Production Option

Inflatable rear shock absorbers

Years 1984, 1986–89 Models 1 Factory citations 5

Query this via API →

Also documented for Chevrolet Oldsmobile Pontiac

Documented applications

Century — A-body (1982–1996)

1984, 1986–1989 Single-source

Shared A-body suspension code, cited from the Chevrolet Celebrity kits (1989 from the order guide's option line); the Century parts catalog (44A or 45A; the earlier wave did not record which) shows the code without a date, and a GM code list reads G66 as manual air level control; every year rests on the Celebrity kits alone (the 1985 page prints no model year, so 1985 is left out), so the row is single-source; the kits' body-style limits are the Celebrity's and are not repeated here

GM Heritage factory kit — 1984 Chevrolet Celebrity, p.41.
GM Heritage factory kit — 1986 Chevrolet Celebrity, p.41.
GM Heritage factory kit — 1987 Chevrolet Celebrity, p.41.
GM Heritage factory kit — 1988 Chevrolet Celebrity, p.45.
GM Heritage factory kit — 1989 Chevrolet Celebrity, p.11.

This page aggregates every documented appearance of G66 in the Buick reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.