Rare 1963 Riviera posi 3rd member. Dis***embled and cleaned clutch packs, all steel clutches. Could use a set of bearings but not pitted either just old. I have the complete 3rd member ***embly. I believe this works to '65 but don't quote me. I was planning on using this in a '61 Lesabre but found it would not switch over even with the different '61 33 spline posi spider gears. Might also work in '63 '64 '65 full size Buicks too. Will install new bearing and races for the price of parts. Thanks for looking, Nick
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