My rear needs some help...LOL

Discussion in 'Got gears?' started by pancher1, Jul 17, 2017.

  1. pancher1

    pancher1 Well-Known Member

    I want to either upgrade or replace the rear in my 1973 Buick Regal. I believe it has the 8.5 10 bolt with the bolt-in axles (granny gears and an open diff). I have added gears and a posi into a chevy 8.5 before...so I am not against doing this myself. Anyone have a link to the correct bearing kit? Also, any preference on gear manufacturer and posi? I am thinking 3.42 gears (or possibly 3.23's).

    The alternative is to find someone that sells a drop in replacement that is set up the way I want it. I kind of doubt there is anyone out there...but I figured I would ask!
     
  2. flynbuick

    flynbuick Super Moderator Staff Member

    Last edited: Jul 17, 2017
  3. pancher1

    pancher1 Well-Known Member

    That's good to know. Thanks!
     
  4. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD"

    http://jdrace.com/diff_id/10b85.htm

    There are some bolt in axle 8.5's (71-72 Buick and Olds). Others are C clip like the 80's GN's. I'm not sure about the 73 Century/Regal.
     

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