Axle, rear, 4.10 ratio, heavy duty

Years 1984 Models 1 Factory citations 2

Documented applications

Vandura and Rally — Second generation G-series (1983–1996)

1984 Factory-verified

7,500 lb capacity rear axle; cutaway and Hi-Cube van power teams at 10,000 and 10,500 lb GVWR, in the 4.10 ratio column beside HF7; GM's later lists read GT5 as the 4.10 ratio duplicate of GT8; 1984 from the February 1984 data book pages in the mislabelled G-Van kit file; shared G-van platform code; cited from the Chevrolet G-Van kit; not in the merged Chevrolet G-Van doc

GM Heritage factory kit — 1985 Chevrolet G Van, p.74.
GM Heritage factory kit — 1985 Chevrolet G Van, p.81.

This page aggregates every documented appearance of GT8 in the GMC reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.