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8.5 with bolt in axles.

Discussion in 'Got gears?' started by B-rock, Apr 9, 2020.

  1. B-rock

    B-rock Well-Known Member

    I have a 10 bolt 8.5 with bolt in axles. I believe. 41-15 tooth count on ring and pinion. This is under the 65 GS I am parting out. Non Posi. Curious if it’s worth anything??
     

    Attached Files:

  2. BrianTrick

    BrianTrick Brian Trick

    Yes,that rearend core is worth keeping. One of the best rears ever made.
     
    GSPops and (deleted member) like this.
  3. B-rock

    B-rock Well-Known Member

    Well thats great news. But I already have a 9" under my skylark that im building up. I will probably wind up selling this sometime in the future.
     
  4. A complete 8.5 rear like that goes for a couple hundred bucks around here
     
  5. Lobucrod

    Lobucrod Well-Known Member

    FYI that’s a 2.73 gear. Great highway gear behind the nailhead.
     
  6. RoseBud68

    RoseBud68 Well-Known Member

    any way of finding out what year 8.5 rear?
     
  7. B-rock

    B-rock Well-Known Member

    As soon as I get the body off of this (im parting it out) I can look for some number codes stamped on the tubes.
     
  8. if it bolted directly in a 65 it can only be a 71 or 72.
     
    RoseBud68 likes this.
  9. RoseBud68

    RoseBud68 Well-Known Member

    Which is why I ask the question.
     
  10. B-rock

    B-rock Well-Known Member

    That it is. Bolted in and Looks just like it belongs there.
     
  11. RoseBud68

    RoseBud68 Well-Known Member

    Looking for a Buick '71 which is why I asked.
     
  12. B-rock

    B-rock Well-Known Member

    If it's not I can sure erase and strike any digit on there to make it a 71. hahahah Or it could be a late/Early model rear.
     
  13. RoseBud68

    RoseBud68 Well-Known Member

    LOL...That would work....
     
  14. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Pretty sure the 3 letter codes for gear ratio and Posi are the same for 71 and 72. That would just leave a date code. Do you have a non stock rear Manny?
     
  15. RoseBud68

    RoseBud68 Well-Known Member

    Yes Larry, Its a non- stock rear 8.2. 3.23. I'm looking for period correct rear.
     
  16. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    :DThe one under my car is a 1971 GS350 rear originally. I got it from BrunoD. He might have another, not sure, PM him.
     
  17. RoseBud68

    RoseBud68 Well-Known Member

    And i have an Old '72 rear picked up from a member here some time ago. Stupid right.
     
  18. Canadian GS 350

    Canadian GS 350 Well-Known Member

    I just picked up 71 olds 10 bolt. All the internal stuff including axles are the same on 71,72 Buick Olds?
     
  19. LARRY70GS

    LARRY70GS a.k.a. "THE WIZARD" Staff Member

    Yes, 8.5 10 bolt with bolt in axles, 28 spline axles. The 71-2 Cutlass rear, same as the Skylark/GS.

    http://www.jdrace.com/content/diff_id/10b85.php
     

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