Proper pinion nut torque???

Discussion in 'Heavy Duty Diesel Truck Mechanics Forum' started by wjhuskey, Jan 16, 2020.

  1. wjhuskey

    wjhuskey Bobtail Member

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    We recently put new u-joints in our rear drive shaft of our 1993 Peterbilt 379 with a 15 spd tranny. We put a brand new yoke on the rear end today but wasn't sure about how much torque to tighten the pinion nut? It's an Eaton rear end. Anyone know the proper torque??? Thanks in advance.
     
    Last edited: Jan 17, 2020
  2. Bakerman

    Bakerman Road Train Member

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  3. baha

    baha Road Train Member

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    What model and wt. is your rear end?
     
  4. swaan

    swaan Road Train Member

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    1" impact and about as tight as it will go.

    I never torque those nuts and every gear shop I've ever seen just burps them on as tight as possible with a 1" impact. Or a real good 3/4
     
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  5. AModelCat

    AModelCat Road Train Member

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    New nut and just hammer it up with a 1 inch. Usually I go until the nut stops turning plus a couple more uggah duggahs for good luck lol.
     
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  6. spsauerland

    spsauerland Road Train Member

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    Axle model or last six of VIN. Usually range between 600-1200 ft/lbs. 1" is what I use too!
     
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  7. SAR

    SAR Road Train Member

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    This is from eaton website.

    IMG_5731.jpg
     
  8. wjhuskey

    wjhuskey Bobtail Member

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    I'm not sure.....
     
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