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10 bolt pinion nut torque specs?

Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by **DONOTDELETE**, Feb 25, 2002.

    A friend of mine is working on his 10 bolt rearend and he needs to know what the torque specs are on the pinion nut. He changed the pinion seal and the repair manual said to count threads on the pinion when tightening it up. I thought that should be some torque specs on a pinion nut? Thanks in advance for the help.


    4 wheelin's not a job, it's an adventure!
  1. ftn96

    ftn96 1/2 ton status

    Sep 26, 2000
    Likes Received:
    Nashville Tn
    Just tell him to use a 12" 1/2" drive hand ratchet an get it as tight as he can and you will pretty close.

    Its the popping, rumbling, roaring, twisting, flexing, grinding, so you can wheel anywhere medicine[​IMG]
  2. txbartman

    txbartman 1/2 ton status

    Jun 1, 2001
    Likes Received:
    Plano, TX
    When setting up a R&P, the pinion preload should be about 12-15 in-lbs. That is after the 400 ft-lbs or so it takes to crush the collar. Since you can't check the preload (can't do that with the carrier and ring gear in place), I would agree to crank it as tight as possible. Then, keep a CLOSE EYE on it for a bit. If it isn't tight enough, it will back itself off.

    Check out <a target="_blank" href=http://tx85gmcguy.alloffroad.com>My Jimmy</a> with all her projects!

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