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need some driveshaft help

Discussion in 'The Garage' started by BIGDAN112686, Nov 16, 2003.

  1. BIGDAN112686

    BIGDAN112686 1/2 ton status

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    alright, i just installed a 4 inch rough country lift on my 1990 blazer. it has a very slight vibe from 20-30, but thats liveable. the real problem is that when you take off teh gas at any speeds above 45, there is a sound that is like a loud click or somethin.(kinda sounds like its not set right) im also still ridin on 31's till tommorow. my questions, is this because the shaft is too short( stickin out about 2-3 inches longer that it was) or somethin else. i know its kinda vague, but if you need to know anything, tell me and ill answer. thanks in advance.
     
  2. tRustyK5

    tRustyK5 Big meanie Staff Member Super Moderator GMOTM Winner Author

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    Could be a little bind in the slip yoke. Have you lowered the T-case any? Lowering the T-case by an inch really helps the slip yoke do it's thing without binding and also helps with the driveshaft length some.

    Rene
     
  3. BIGDAN112686

    BIGDAN112686 1/2 ton status

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    i havent lowered the t-case. would you suggest that over lengthening the driveshaft? also, would shims help at all? there are shims on the bottom of the spring pack, but i would say it was only about 3 or 4 degrees.
     
  4. BIGDAN112686

    BIGDAN112686 1/2 ton status

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    also, is transfer case lowering easy to do? will this help with both driveshafts? thanks.
     
  5. BIGDAN112686

    BIGDAN112686 1/2 ton status

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    someone please give me some help. im hopin to order whatever i need so that i can have it fixed asasp. thanks.
     
  6. BowtieRed

    BowtieRed 1/2 ton status Author

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    go buy some 1" diameter or so poly bushings for anything, take them, and put them between the t-case x-member and the frame. and bolt it back up. as far as helping the front shaft- it will buyt could fun into front shaft problems if you have a 465/241 combo- in which case the front ashaft my hit the x-member.
     
  7. crazykev4x4

    crazykev4x4 1/2 ton status

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    lower the tcase it will help alot take the spacer from the top between the frame and nut and use that 1" spacer to space the crossmember a inch

    Kevin
     
  8. BowtieRed

    BowtieRed 1/2 ton status Author

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    where in NC are you, i'll help you with anything you need done on the K5
     
  9. BowtieRed

    BowtieRed 1/2 ton status Author

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    [ QUOTE ]
    lower the tcase it will help alot take the spacer from the top between the frame and nut and use that 1" spacer to space the crossmember a inch

    Kevin

    [/ QUOTE ]

    i don't recommend or accept this strategy.
     
  10. Confedneck

    Confedneck 3/4 ton status

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    i must concur with bowtiered...never use just those spacers, they make the possibility of ripping the frame apart pretty good...get some bar stock steel or aluminum and use it...distributes the load MUCH better..
     
  11. crazykev4x4

    crazykev4x4 1/2 ton status

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    just use the spacers to see if the vibe is gone then get something made that is solid to use as a spacer .

    Kevin
     
  12. TXsizeK5

    TXsizeK5 1/2 ton status

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    Here's a pic of my t-case and how it sits. I'm actaully planning to move it up.

    *does this look like it sits way too low in comparison to the frame???

    [​IMG]
     
  13. BIGDAN112686

    BIGDAN112686 1/2 ton status

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