10 bolt 8 1/2" series 2 posi unit

Discussion in 'Parts for sale' started by MGSCP, Apr 22, 2009.

  1. MGSCP

    MGSCP Guest

    :idea2: 10 bolt 2.56 series 2.. 8 1/2" posi unit........needs cleaning and reassembly....

    125.00...+ the ride or trade for series 3 8 1/2 or Riviera 9 3/8 2.93 posi unit

    pix on the way.....
     
  2. nekkidhillbilly

    nekkidhillbilly jeffreyrigged youtube channel owner

    this fit a a-body rear?
     
  3. buickmuscle2369

    buickmuscle2369 Active Member

    what is it out of i have a 71 skylark i just put a big block in and im looking for a rearend that can handle it
     
  4. MGSCP

    MGSCP Guest

    :idea2: well guys it came out of a mid 70's caprice....and I think it will fit the A body :idea2: :bglasses:
     
  5. monzaz

    monzaz Jim

    8.5 IS 8.5 NO MATTER WHAT IT CAME out of. 1970 -1987 All 8.5 corperate are identical. all you need to worry about is the series gear your going to use. 2.41 2.56 is 2 series carrier and 2.73 -5.57 are used on the 3 series.

    Now you can use the 2 series carrier with the spacer t use all the 3 series carriers and as long as you are not in the 11's you will be fine and definitely street bound vehicles will be fine.

    Good luck. Jim
     
  6. MGSCP

    MGSCP Guest

    :Brow: thanks Jim....... I was hoping you would chime in.......:beers2: :TU:

    :shock: hell.... I might just keep the thing......:idea2: I didn't know you could use a ring gear spacer on these.... do you have a 71 72 housing...:Do No:

    :Do No: :Do No: also how much to install this posi unit in a housing that already has a 3.73 gear in it.......:Do No: :Do No:


    Pm me you contact info.....
     
  7. buickmuscle2369

    buickmuscle2369 Active Member

    well if you dont decide to keep it let me know ill come pick it up this week
     
  8. 65skyturbo

    65skyturbo Well-Known Member

    GM 8.5 corporate carriers always interchange with one exception. If it came out of a car with bolt-in axles (some BOP) it will not work in a c-clip application (most GM). I have found that the bolt-in axle 8.5's don't have the spider gears machined for the c-clip recess. Of course, I learned this the hard way....
     
  9. USAMPFREAK

    USAMPFREAK Well-Known Member

    Still got this? If so will it work in my 75 Olds Omega with 8.5 10 bolt 28 spline?
     
  10. MGSCP

    MGSCP Guest

    :idea2: Hi Greg... I decided to keep the posi unit when I found out I could use it.......no sense selling it if I have to buy another one at a later date at double the price....

    :bglasses: thanks for inquiring....:TU: :TU: :TU:



     
  11. buickbob1

    buickbob1 buickbob1

    how can you tell if it is a 8.2 or 8.5?
     

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