Suburban Rear axle gear ratios

Discussion in '1955-1959' started by vhpeddler, Mar 29, 2011.

  1. vhpeddler

    vhpeddler Member

    Joined:
    May 8, 2005
    Messages:
    26
    Looking for a better gear ration fo my 1957 and saw that a Surburban will bolt in, anyone know what years 1955 -? and what the ratios may be. Looking for clarification, I have no clue. Thanks.
     
  2. TruckPoor

    TruckPoor Member

    Joined:
    Nov 16, 2010
    Messages:
    40
    If its a half ton then Its got a 3.90. You can also leave the rear end as is and put in a overdrive trans. I've used a rear end out of a 69 1/2 ton pu before, had 3.73 gears, but you have to do some cutting and welding and get the pinion angle set right. Chris
     
  3. Bill Hanlon

    Bill Hanlon Member

    Joined:
    Jun 4, 2002
    Messages:
    2,538
    Location:
    Fredericksburg TX
    And the change from 3.90 to 3.73 isn't worth the effort unless you had some other reason the rear end needed swapping.
     

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