31 spline 672 casting Olds 442 anti spin (limited slip differential ) carrier unit.
This is an extremely rare find. these were only produced for the 1967 1968 442 cars.
The cover will have 12 bolts and the carrier is 10 bolts that holds the ring gear on.
This unit uses 31 spline axles. Which are bigger than chevy 12 bolt rears!
Posi unit will hold 3.42 3.91 4.10 4.33 gears.
Check the pictures for an example of the rear cover...
Posi has been totally reconditioned and ready to install.
Rear Ends and parts for sale
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