7 ✓ Factory-verified

Cadillac · Regular Production Option

Optional 3.77:1 rear axle

Years 1965 Models 2 Factory citations 2

Also described as Optional 3.77 rear axle

Documented applications

DeVille / Calais →

• 1965 ✓ Factory-verified

  Series 75

  ⛭ GM Heritage factory kit — 1965 Cadillac VVI, p.153.

Fleetwood →

• 1965 ✓ Factory-verified

  Series 75 only; kit "7 - Optional Gear Ratio 3.77 - Fleetwood 75 only"

  ⛭ GM Heritage factory kit — 1965 Cadillac VVI, p.153.

Related codes · mentioned in these notes

3

This page aggregates every documented appearance of 7 in the Cadillac reference. Confidence and citations are shown per application — the same code can be better documented in one year than another.