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front driveshaft mods on 6in springs

Discussion in 'The Garage' started by gritdog, Apr 16, 2002.

  1. gritdog

    gritdog Registered Member

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    after installing front 6in lift springs with driveshaft spacer,(78 Chevy) I am still having driveshaft rotation problems....Popping,binding.
    Is it standard practice to remove "lugs or stops" from around
    the u joint area? Any other mods that may help?
     
  2. GMCLegacy

    GMCLegacy 1/2 ton status

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    is you driveshaft a fixed yoke output style or a flange mount?
     
  3. gritdog

    gritdog Registered Member

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    flange mount at trans. side
     
  4. GMCLegacy

    GMCLegacy 1/2 ton status

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    if it is the flange you can take a die grinder/dremel/angle grinder and remove the yokes where it binds. i would not recomend getting carried away, otherwise you can get the ball to leave the socket (so to say). anyway, when i had my 6" lift, i ground mine untill it hung about 4 inches below the diff and never ran into any problems. you may want to find a 3 degree shim for the front axle, it will help out the angle on your lower ujoint. good luck,
     
  5. gritdog

    gritdog Registered Member

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    Thank you for help ! I was wondering about using a shim but was not shure.
     
  6. CaptCrunch

    CaptCrunch 1/2 ton status

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    first off do you have the tcase lowered? If you do this hurts the drive shaft angle up front. What degree shim do you have in? Also I would recomend lengthening the shaft or a 1" d-shaft spacer from Superlift. I have one of these on my 6" lift, w/ 2 degree shims, and NO tcase lowering and mine works great.
     
  7. gritdog

    gritdog Registered Member

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    I did lower the tcase and found the the angle was going up on the front. After thinking about it, I though thats not going to help. However, I found most people do lower the tcase. I think I will try the shim. I already have the spacer for the drive shaft. I also found that the people who sell these kits are not much help !!
     
  8. CaptCrunch

    CaptCrunch 1/2 ton status

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    lowering the tcase is a fix for helping out the rear driveline angles since that is used most of the time at higher speeds on a daily driver. I went with a CV shaft in the rear specfically to avoid a problem up front. 4 degree shims are the recoemnded degree for a 6" lift wit tcase drop.

    Look at you u-jt angle... if you don't have binding in the CV up front then it is the u-jt angle causing your problems and a shim will help.
     
  9. gritdog

    gritdog Registered Member

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    Thanks, I lowered the tcase with the stock spacers and I plan to add a shim today. With the driveshaft spacer and a little help from the grinder the drive shaft will spin by hand now. Once again thanks to everyone for the help.
    Gritdog Rock Hill,SC
     
  10. FRIZZLEFRY

    FRIZZLEFRY 1/2 ton status

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    After I put 6" springs on the front of my K5 I had a problem with the CV joint rubbing the crossmember.Have you looked at that?
     
  11. gritdog

    gritdog Registered Member

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    No, I over looked that. I was to busy looking at the driveshaft. However, I will be back under it this weekend and I will check it out.
     

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