Transmission, manual 4 speed with overdrive, with Z51

Years 1986–88 Models 1 Factory citations 3

Documented applications

Corvette — C4 (1984–1996)

1986–1988 Factory-verified

specification pages only: the gearbox with the Z51 package (MH5 is the base gearbox); the order guides order the manual transmission as MM4, and the code is claimed from the MVMA specification pages

GM Heritage factory kit — 1986 Chevrolet Corvette, p.31.
GM Heritage factory kit — 1987 Chevrolet Corvette, p.49.
GM Heritage factory kit — 1988 Chevrolet Corvette, p.103.

This page aggregates every documented appearance of MK2 in the Chevrolet reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.