Search found 2 matches

by Johnny406
Thu Feb 11, 2016 12:11 pm
Forum: 10 Bolt Differential Questions
Topic: BOP or Buick Posi Unit 8.2?
Replies: 4
Views: 11603

Re: BOP or Buick Posi Unit 8.2?

Hi Jim,

Thanks for the idea, it took awhile but I finally found the original 8.5 carrier from my 81 T/A for a side by side comparison. The posi unit has smaller holes. For giggles I stuck the Richmond 3.90 ring on it and it lines up perfectly as the ring has the smaller holes as well.
by Johnny406
Fri Jan 29, 2016 12:34 pm
Forum: 10 Bolt Differential Questions
Topic: BOP or Buick Posi Unit 8.2?
Replies: 4
Views: 11603

BOP or Buick Posi Unit 8.2?

Hi Jim, I have what I believe is a BOP 8.2 posi but a search I did on the 620899 "indicates" that it is a Buick. But, both carrier bearings are the same size. The carrier says ISSUED 5-30-61; US Patent 2821088; CAN Patent 620899. Can you shed some light on what it actually is? Thank you, J...