i believe they started in 1981 and went thru 1987? think of it as a 4 speed with 4th as o/d. 3rd is 1 to 1. tom

here is one in aluminum, it has the goofy bolt pattern. the chevy bolt pattern physically looks the same. tom

Inliner Member 1716
65 Chevelle Wagon and 41 Hudson Pickup
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