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Discussion in '1973-1991 K5 Blazer | Truck | Suburban' started by blazen91, Jul 16, 2001.

  1. blazen91

    blazen91 1/2 ton status

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    I am putting in my 14 bolt today and have to cut and move the perches. My question is on the angle on the pinion, so correct me if I am wrong. If my t-case is at 6 deg. down, where would I set the axle pinion up to. (That is just a number off the top of my head, I don't know what I have on the t-case.) Or if you can explain it in another way I would understand, please feel free. Thank you for your help.

    <font color=red>Land use issues are the heart of our sport.
    Get involved or lose the sport.</font color=red>
     
  2. Wheels

    Wheels 1/2 ton status

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    For a straight driveshaft (u-joint at each end) if your t-case is pointing 6 degrees down, point your pinion 6 degrees up. If you have a CV joint, point the pinion at the t-case (CV joint to the t-case).
     
  3. blazen91

    blazen91 1/2 ton status

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    thank you for your help!

    <font color=red>Land use issues are the heart of our sport.
    Get involved or lose the sport.</font color=red>
     
  4. kpanza

    kpanza 1/2 ton status

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    Mike,

    I have heard that if you are running u joints, you should actually point the
    pinion LOWER than the t case angle by ONE degree (in your case it
    would be 5 degrees up at pinion and 6 degrees down at t case) - it is
    something about the torque transfer, it will raise your pinion up about a
    degree under load...just something i remember reading about.

    If anyone else can confirm or deny this, please post here!
     
  5. mudddog91

    mudddog91 1/2 ton status

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    tHATS CORRECT,IT NEEDS TO BE A DEGREE OR SO DOWN TO CORRECT FOR AXLE WRAP!!!!!!!!!!!
     
  6. blazen91

    blazen91 1/2 ton status

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    Well I hope I did it right, because I now have an installed 14bff. The only bad news is that I can't go wheeling do to the 4.56 in the rear and the 3.08 in the front :( and I lost a few inches of ground clearence. I've hung up on the 10 bolt on rocks, so the 14 should be lots of fun!!

    <font color=red>Land use issues are the heart of our sport.
    Get involved or lose the sport.</font color=red>
     

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