Will a 68 skylark 12 bolt swap over to a 72 skylark?

Discussion in 'Buick FAQ' started by Andrew Skidmore, Feb 23, 2005.

  1. Andrew Skidmore

    Andrew Skidmore Well-Known Member

    Will a 68 Skylark 12 bolt swap over to a 72 Skylark?
     
    Andrew Skidmore, Feb 23, 2005
    #1
  2. 71GS455

    71GS455 Best Package Wins!

    Buick didn't make a 12 bolt rear, so it's likely a 12 bolt Chev rear in the 68.
    It will swap, with all the standard disclaimers of using a 12 bolt rear. Go to buickperformance.com and there's some tech info on the swap.
     
    71GS455, Feb 23, 2005
    #2
  3. Dave Hanlon

    Dave Hanlon LARGE MEMBER

    yes will have to change to a longer drive shaft 12 bolts pinion are a little shorter than the 8.5 that came in your 72 .
     
    Dave Hanlon, Feb 23, 2005
    #3
  4. RACEBUICKS

    RACEBUICKS Midwest Buick Mafia


    My 4 speed GS had the original 12 bolt 342 non posi in it when I bought it. Yes they did make a 12 bolt "c" series rear. Wheres DUANE!!???
     
    RACEBUICKS, Feb 23, 2005
    #4
  5. Andrew Skidmore

    Andrew Skidmore Well-Known Member

    I have always been told that Canada Buicks came with 12 bolts, and the Domestic ones came with 10 bolts. :confused:
     
    Andrew Skidmore, Feb 24, 2005
    #5
  6. 71GS455

    71GS455 Best Package Wins!

    The Canadian ones used the Chev 12 bolt.
     
    71GS455, Feb 24, 2005
    #6

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