67 barracuda 7 1/4 rear end

The "A" body 7 1/4 rear was basically the same from 1960 to about 1973, in the small bolt pattern. There were some internal differences over the years. Different axle bearings, later years were larger (don't know years ofhand). Method of adjusting ring gear carrier bearings (shims, or threaded adjusters). Different style suregrip (clutch/cone).
The later large bolt pattern 7 1/4 also had larger axle bearings, with totally different housing ends, and different axles.