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  1. #1

    Default 04 rear end into 98

    Will a rear end out of a 04 2wd bolt right in to a 98 4x4? They are both the same gear ratio, but the 04 rear end has G80 and my 98 does not. Which is the reason I want to do the swap.


  2. #2


    a 2wd axle is wider normally than the 4x4 axle (van axles are the widest btw)but you are also throwing in the mix a different body style, as long as the spring perches are in the same spot and it has the same pinion yoke it will physically bolt in but may be wider than your current axle.

    if the 04 is disk brake then you may have another issue

    personally i would stay away from any g80 governor bomb unit as they were the worst thing gm ever put in a axle, there is a reason why junk yards get a premium for those axles, people that blow them up for some reason always think they need another and junk yards know it and charge more for a axle that will eventually blow up again
    Last edited by outalne94z71; 10-31-2011 at 10:05 PM.
    my 88 sas "mudwasp"
    88 chevy k2500, started as reg cab lb, now reg cab shortbox, sas 17'' of lift, 52'' front springs f.i. bbc , 79 dana hp 60 chevy outers, 14bolt ff spooled divorced 205 and cut 40'' gumbos
    1998 k3500 gmc crew cab dually L65 6.5TD 4l80e with a couple of mods

    bouncing truck avatar creator

  3. #3


    Yes, the 04 axle has disk brakes. Do you know any cheap way to put a locking rear diff in?

  4. #4


    personally i would use a 6 lug 14 bolt and use something like a auburn posi or even a standard eaton posi but not the g80 unit which is also made by eaton

  5. #5


    what do you think about powertrax lock right differential?

  6. #6


    similar to a detroit locker, its not as forgiving as a clutch style posi so you will see more tire wear, i have heard of failures when used with tires larger than stock, not sure what kind of failure rate there really is

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