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chevy 10 bolt 8.5 rearends

Discussion in 'The Hokey Ass Message Board' started by mysteryman, Dec 11, 2011.

  1. mysteryman
    Joined: Apr 20, 2011
    Posts: 253

    mysteryman
    Member
    from atlanta

    will a truck 8.5 ring gear ,pinion,and carrier fit into a car 8.5 housing.ive been told it should all i would have to change are the peices?that the axle splines slide into???
     
  2. squirrel
    Joined: Sep 23, 2004
    Posts: 55,931

    squirrel
    Member

  3. 1971BB427
    Joined: Mar 6, 2010
    Posts: 8,717

    1971BB427
    Member
    from Oregon

    Pinion diameters may not be the same. You'll have to meaure both to know if the truck is the same 1.62 diameter like the car.
     
  4. cooke
    Joined: Jan 13, 2011
    Posts: 73

    cooke
    Member

    Are you going to be using 30 spline axles? I know for sure the ring and pinion gears will interchange. I've used "Suburban" 3.42 and 3.73 gears in a "car" 8.5" rear before. No problems there. All passenger car 8.5's were 28 splines and I'm thinking all 1/2 ton and 1500 series trucks, suburbans, etc. got 30 splined axles.
    Can't remember for sure; but I've seen a "limited" slip unit out of a truck before and for some reason it seems like it looked quite abit different than a standard passenger car "limited" slip unit. Is that what you're trying to do?
     

  5. squirrel
    Joined: Sep 23, 2004
    Posts: 55,931

    squirrel
    Member

    The trucks often got the "govlock" limited slip, it's rather funky looking.
     
  6. cooke
    Joined: Jan 13, 2011
    Posts: 73

    cooke
    Member

    Maybe that's what it was. It's been a good while back; but I remember them being different than a normal "P"-Trac.
    Hard to beat the old 8.5" 10-bolt. Over the years we've made some serious HP and had them live. Much cheaper and plentiful than their 12-bolt counterparts.
     

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