1970 Buick lesabre 4dr custom 455 rear end swap options

Discussion in 'Got gears?' started by oldsoul324, Jun 4, 2014.

  1. oldsoul324

    oldsoul324 Active Member

    hey guys im thinking of putting a built 2004r in my led sled eventually and thought that my 2.73 rear end would make getting off the line a nightmare. Now im not looking for a race car just a nice all around cruiser....that can blow the doors of a 2014 challenger/charger.....however so far i am aware that the 70 lesabre 455 came with the 9 3/8 rear end that has no aftermarket support but seeing that the 70 lesabre 350 came with the 8.2 rear end which does have aftermarket support couldnt i just find an old lesabre/wildcat 350 car and take the rear end out of it and put whatever gears i wanted in it..... a 3.23 ideally then throw it in my beast.....anyways not sure if any of this is possible or already been done but thanks for any info/input
  2. Mark Demko

    Mark Demko Well-Known Member

    If your going to a 2004R trans I would install at least a 3.73 gear:TU:

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