Why It Matters
The 1973 Colonnade Cutlass used GM's 8.5-inch corporate 10-bolt rear axle. The documented L77/M20 example used a 3.23:1 ratio; Anti-Spin was optional and must be verified per car.
Also Known As
1973 Cutlass corporate 10-bolt1973 Oldsmobile 8.5-inch 10-bolt1973 Cutlass 3.23 rear axle
