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post #1 of 3 (permalink) Old 02-27-2016, 11:39 AM Thread Starter
 
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posi question



Kinda new at the rear-end dept. please bare with me.
Will BOP 8.2 posi unit from a '67 gto fit a '64 buick skylark ?
Also will the 8.2 posi unit fit into a non posi 8.2 housing ?
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post #2 of 3 (permalink) Old 02-28-2016, 10:42 AM
 
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'64-67 Buick cast 8.2 housings accept the '64-69 Pontiac 8.2 carrier and the '70-72 Pontiac 8.2 carrier (just have to use matching ring and pinion).

The early Buick ('64-67) 8.2 10 bolt cast center housings are of a single rib casting design in the pinion area and lack a LOT of pinion support. Considering building off the early Buick 8.2 housing, and the build is going into a cruiser/driver, one should be fine. on the other hand, trying to throw 400 ft/lbs of torque at the early 8.2 Buick rear in a car that can hook, asking for trouble...better to go with a much stronger rear. Olds engineers figured this out for '65 with their manual trans 442's, the early 442's 400 engines just making too much torque for the Buick cast housings.
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post #3 of 3 (permalink) Old 02-28-2016, 12:23 PM Thread Starter
 
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Thank you so much, just checking before I sell this unit.
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  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO Undercarriage, Frame, Transmission and Differential Discussions.

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