9 3/8" rear differences

Discussion in 'A boatload of fun' started by quicksabre, Apr 22, 2005.

  1. flynbuick

    flynbuick Super Moderator Staff Member

    I am pretty sure that the whole axle housing from another 71 or 72 Buick Riviera will interchange. I am unsure about whether another 73 Riviera will.
  2. David Brown

    David Brown New Member

    I know the 71-73 will. I see sites that say s GM will fit and I was trying to confirm.
  3. flynbuick

    flynbuick Super Moderator Staff Member

    I do not know what you means by "GM". I do not think there is another donor model other than a 71-73 Riviera. The reason has to do with other aspects of a particular model's housings, like spring perch locations and so forth.
  4. RoadShark

    RoadShark Well-Known Member

    That is what the Hollander Interchange Manual says. It used to be the Bible for interchange before the internet came along. I haven't confirmed any of that and have no first-hand knowledge, just thought I'd give you a starting point.

    What I posted is for the housing and has nothing to do with the internals.
  5. flynbuick

    flynbuick Super Moderator Staff Member

    Bill--Thanks for looking this up. I had not noticed your post.

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