9 3/8" rear differences

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

  1. 69wildcatgs

    69wildcatgs Member

    That is hopefully the answer I need. So I know what to order when I call them.
  2. Bohog513

    Bohog513 New Member

    can u keep me posted if u find a bolt in rear I need to find one for my 70 Buick Electra Preferably a 12 bolt it can be a lil shorter
  3. 69wildcatgs

    69wildcatgs Member

    I've been exploring this rabbit hole for almost 2 years now. While I am all for keeping it original, (to an extent) I've been looking into replacing my rear end altogether. However, no shop will build me one. They just want to sell me parts to do myself.
  4. flynbuick

    flynbuick Guest

    I will bet you that Brian or Jim on this Board will do this build for you.
  5. Jaquan

    Jaquan Member

    Would this work for my 61 Lesabre 4 Door HT
  6. Brad Conley

    Brad Conley Super Moderator Staff Member

    No. You have a torque tube drive and without a ton of fabrication the 8.5" won't just drop in.
  7. Dan Hach

    Dan Hach Well-Known Member

    What about a 62 Lesabre?
  8. Brad Conley

    Brad Conley Super Moderator Staff Member

    Same deal. Buick used Dynaflows up to 1964 when they changed to open drive lines and more modern transmissions.
  9. 69hellcat

    69hellcat Well-Known Member

    61,62 and 63 were open driveline with the Dynaflow 1960 was the last of the torque tube for Buick.
  10. Brad Conley

    Brad Conley Super Moderator Staff Member

    Really? I was not aware of that. I thought it went until 1964. My bad...
  11. Electra GSX

    Electra GSX Member

    what is the primary failure origin for the 9-3/8” rear? Can it handle sustained 500hp/535T loading like in a closed course?
  12. Larryb

    Larryb Member

    if still available i would like it I'm in the uk so can't get parts larrybowyer5@gmail.com
  13. Larryb

    Larryb Member

    hey can u help i have what i think is a buick axle out of a 74 regal iv been told its a 9 3/8 but no one can confirm has a 2 something gear in it the numbers on the axle are 40628 then a 8 then bl any ideas I'm on larrybowyer5@gmail . com I'm in the UK so can't get any help

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