Economy axle ratio (dealer ordering code)

Years 1968–69, 1972 Models 2 Factory citations 2

Also described as Economy Rear Axle

Documented applications

Camaro

1968–1969 Factory-verified

powertrain dependent

GM Heritage factory kit — 1969 Chevrolet Camaro, p.158.

Corvette (C3)

1972 Factory-verified

$12.65 retail ($12.00 dealer); count n/a. Factory kit confirms RPO ZQ8 (economy axle) on both the price schedule (p.76) and the "Extra Cost Equipment" list (p.98)

GM Heritage factory kit — 1972 Chevrolet Corvette, p.98.

This page aggregates every documented appearance of ZQ8 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.