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Front Driveshaft question

Discussion in 'The Garage' started by crazyhole812, Jan 19, 2007.

  1. crazyhole812

    crazyhole812 1/2 ton status

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    My truck has 52" swap with 2" lift springs. It has 7 1/4" shackles. It has about 5 1/2"- 6" of lift with my zero rates i machined 6* to correct the caster. I also have 14" travel shocks, so it should flex pretty well. i'm trying to figure out what to do about a drive shaft. My question is, do i need to rotate the pinion up for a cv shaft? i'm sure this has been discussed before. but i was wondering if anybody that has a similar set up could tell me what they went with. thanks guys
     
  2. muddybuddy

    muddybuddy 3/4 ton status

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    you should have closer to 7" lift unless your leaf springs are sagging. what you got, 6* shim should be fine for the cv
     
  3. mrk5

    mrk5 The Sticker Guy Moderator Vendor GMOTM Winner Author

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    You should be fine running the stock type CV. Especially if you fixed the caster to match the stock angle.

    Another option I'm considering is running a long shaft I have without CV and use the Tom Woods Superflex joint. But that joint isn't for a truck that is going to see speeds much over 40mph in 4wd. Some can't go over 20mph without horrible vibes.

    I used a protractor and did some estimating on the amount of droop I might see. Based on the angles I found, I shouldn't exceed the rated angle for a 1310, so I don't think I'm going to mess with the Tom Woods joints. Unless I find binding issues otherwise on the trail. I am going to run without a CV.

    Sounds like you may have an inch or two more lift than I, so your results may be different.

    I've decided to build an RTI type ramp so I can test things out and see if I need to make changes.
     
  4. crazyhole812

    crazyhole812 1/2 ton status

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    sorry i forgot to mention that i have an 87 3/4 ton which i believe sat a little higher than the blazers when it was stock. ??? i think. i was planning on getting my shafts from tom woods. thanks guys
     

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