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14bff pinion angle

Discussion in 'The Garage' started by SkulzNBonz, Mar 27, 2006.

  1. SkulzNBonz

    SkulzNBonz 1/2 ton status

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    The search feature is seriously lacking. I am in the middle of installing my 14 bolt, and I would like to know the pinion angle I should shoot for. I know it's supposed to be within a couple degrees of the t-case output, or just to the opposite direction. I am running a standard driveshaft, and probably will for a while. Could someone give me a clear answer befroe I tack weld my spring perches in place? Thanks, and sorry for the question that has been answered more than once here.

    John
     
  2. DPI

    DPI 1/2 ton status

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    Measure the angle at the transfercase output shaft. You want to match it (but opposite) minus a degree or two for axle wrap under torque.
     
    Last edited: Mar 27, 2006
  3. goldwing2000

    goldwing2000 Guest

    For a street-driven truck, that is the best advice.

    For a trail rig, point the pig directly at the t-case and glue it!
     
  4. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    The onlt time you point the pinion at the T-case is when you're running a CV driveshaft. Anything other than a CV shaft the driveline needs to have the same working angles front and back otherwise you will get a vibration and pre-mature U-joint failures.
     
  5. goldwing2000

    goldwing2000 Guest

    That's why I said for trail rig only. High-speed vibration doesn't matter at low trail speeds.
     
  6. SkulzNBonz

    SkulzNBonz 1/2 ton status

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    That's funny Daniel, I just thought aboot calling and asking you, for "some" reason I knew you would know:D Thanks for the quick answer, y'all. My rig sees the pavement, and I drive my rig to the trail, so it needs to be right for both the trail and the street.

    John
     
  7. 4X4HIGH

    4X4HIGH 1 ton status Premium Member GMOTM Winner

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    Who said anything about high speed vibration? You will usually get a vibration at low speeds and get worse with the faster you go.
     
  8. surpip

    surpip 1 ton status

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    ya the pavement of your driveway
    you need some help dude? dont be afraid to call
     

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