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455 regal rear end

Discussion in 'V-8 Buick Powered Regals' started by gearhead, Jun 30, 2008.

  1. gearhead

    gearhead Active Member

    i have a 82 regal i am putting a 455 in. can someone tell me how to spot the 8.5 from the7.5. and wich cars i can find the good rear end in.:Dou:
     
    gearhead, Jun 30, 2008
    #1
  2. gearhead

    gearhead Active Member

    when i ask the salvage yard the ask for the cover size 10 1/4x9 1/2 or 11x10 1/4
     
    gearhead, Jun 30, 2008
    #2
  3. Leviathan

    Leviathan Inmate of the Month

    ...the 8.5 was offered in the Grand National, Turbo regal, and Hurst 442. the odds of finding one at a wrecker within your lifetime is roughly zero.

    Best bet is to buy one at the Turbo Buick site...
     
    Leviathan, Jun 30, 2008
    #3
  4. gearhead

    gearhead Active Member

    can you get a 8.5 that is not a possie. i found a few gn rearends but they want stupid money one was 1500.00. non possies are cheap i can get that and build a good one.cause i am thinking of putting 373 gears in it. i just dont know the outside markings on 8.5 are...........thanx shane.........
     
    gearhead, Jun 30, 2008
    #4
  5. Leviathan

    Leviathan Inmate of the Month

    Here's how you spot the difference:

    http://www.maliburacing.com/rearend_guide.html

    $1500 is actually an average price for a GN rear. The 8.5 did come in a non-posi, converting them will take you about 8-20 hours depending on skill level.
     
    Leviathan, Jul 2, 2008
    #5
  6. Joe Kelsch

    Joe Kelsch Eat Mo' Rats

    Here's a pic of an 8.5" I got it from George's site.

    [​IMG]
     
    Joe Kelsch, Jul 3, 2008
    #6
  7. gearhead

    gearhead Active Member

    what would be the best way to do this. find a non posie and put gears and a chunk in it. or get a gn rearend. trying to go as budget as possable. and i dont want a 9inch rear end. something about putting anything that originated from a ford in GM , thats just wrong.......................thanx shane...........
     
    gearhead, Jul 4, 2008
    #7
  8. monkeyy337

    monkeyy337 monkeyy337

    Even if you find a non-posi it may still have the gear you want in it. I passed on a GN rear end (non posi) that had a 3.42 gear in it and let my buddy buy it for $160.00 (I already had two). Because its a non posi doesn't have anything to do what gear ratio it has. Most GN's had a 3.42 gear from the factory if not all unless ordered differently from the factory.
     
    monkeyy337, Jul 4, 2008
    #8
  9. Joe Kelsch

    Joe Kelsch Eat Mo' Rats

    I'm about 99% sure that the 3.42 was in every GN and T-Type from 84-87 with the 8.5" 10 bolt. The Hurst Olds Cutlasses came with 3.73 in a 8.5" 10 bolt. Before 84 GM used the 7.5 in all their G-bodies.
     
    Joe Kelsch, Jul 5, 2008
    #9
  10. Leviathan

    Leviathan Inmate of the Month


    If you don't have a lot of time to work on the car buy a good used GN rear end for $1000-1500.

    If you have lots and lots of time free, buy a non-posi for under $400 and convert it. It will be cheaper, and stronger but take a lot of effort.
     
    Leviathan, Jul 8, 2008
    #10

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