yeah, so about my rear end...

Discussion in 'Got gears?' started by Go Buick Go, Sep 24, 2004.

  1. Go Buick Go

    Go Buick Go Woot!

    Ok, there used to be a sticky about this in the big car forum, but damn hackers screwed that up...

    So here goes:
    I have a 70 LeSabre which (from previously reading the big car forum sticky, and looking at the axel) I found out has a 10 bolt rear, supposedly the same one as they put on the a-body cars.

    Now, seeing as I want a posi or limited slip rear end (as opposed to the open, spin one tire all day rear end that I now have), what is the internal size of the gears? Or I guess I should ask if this is a 8.2 or an 8.5 rear end. I also believe it's a 28 spline, but seeing as I haven't opened anything up, I don't know.

    Also, does anyone actually make posi units for this rear? I was looking in the summit catalogue, and they had posi units for 71 and up, and for 64-72 chevy rears, but nothing for a 70 rear end. So wtf, eh?

    Any help would be awesome... :beer
  2. Buick Power

    Buick Power Well-Known Member

    First thing that you will have to determine is if the passenger side bearing cap (thus bearing also) are larger than the driver side. If so you will have a problem getting parts. If they are the same such as with the `64-`69 types there are a limited number of combinations. There are 3.55, 3.90 & 4.10 gears available as well as posi carriers. TA offers these and they run about $900 for gears, carrier and installation kit.


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