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mill a zero rate?

Discussion in 'The Garage' started by mouse, Feb 17, 2005.

  1. mouse

    mouse 1/2 ton status

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    I thought I read somewhere that someone had milled their zero rate springs to get a better pinion angle. I have a bit too much angle on the u-joints, and I want to angle the rear end a little. When I brought the truck to the local driveshaft shop he recommended a 3 degree shim. I really don't want to use a shim and like the idea of angling the zero rate instead.

    Now, do I pay a machine shop to setup the milling maching to get a nice exact cut, or do I use a metal band saw and make as close of cut to perfect as I can and then file smooth?

    Any other options?

    Thanks
     
  2. ntsqd

    ntsqd 1/2 ton status

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    There are good shims and bad shims. Good shims are made from steel. Bad shims are aluminum. A steel shim wouldn't bother me.

    Mill it if you go that route.
     
  3. 2Dogs

    2Dogs 1/2 ton status Premium Member

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    I had a steel degree shim made - with countersunk bolt hole. Added 3/8"
    to the back which actually helped. The shim was welded to the ZR all the way around.
     
  4. sickquad

    sickquad 1/2 ton status

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    I milled my own "zero rate" with the angle I needed in it. I would have to say that doing it with a cutting blade would not work. Has to be done in a Bridgeport. It wouldn't be cheap to have a machine shop do it.
     
  5. jkce457

    jkce457 1/2 ton status

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    You can buy them already milled from ORD and then sell the ones that you have.
     
  6. mouse

    mouse 1/2 ton status

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    Thanks for the replies. I'll check with ORD.
     
  7. sickquad

    sickquad 1/2 ton status

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    If you get stuck for them. I could make you a pair. PM me.
     

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