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90 Blazer "U" joint replacement ?

Discussion in 'The Garage' started by opfor2, Sep 23, 2005.

  1. opfor2

    opfor2 1/2 ton status

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    My main driveshaft front u joint is starting to click so I would like to replace both of them. I looked at them and they don’t have any visible retaining clips. There seems to be a white plastic stick pushed in to hold them on. Is this correct or am I missing something?

    Also, what are the best and strongest joints for this truck?
    Thanks

    Dan..
     
    Last edited: Sep 23, 2005
  2. gmcjimmy90

    gmcjimmy90 Registered Member

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    yes they are held in by plastic so you have to heat it up till all the plastic comes out. but be careful because it will pop and could burn. as far as the u joints go i run cheap ones, would rather break ujoint then driveshaft.
     
  3. opfor2

    opfor2 1/2 ton status

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    OK, that's about a bunch of Sh*t!! Do the new u joinnts come with the plastic rod? or can it be modified to use the clips?

    Dan..
     
  4. Chaddy

    Chaddy 1/2 ton status GMOTM Winner

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    just go get yourself some spicers
     
  5. Emmettology 101

    Emmettology 101 3/4 ton status

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    New joints will come with clips.
     
  6. stockk5

    stockk5 1/2 ton status Premium Member

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    the stock chevy ones have those stupid plastic inserts u gotta heat them up till they pop out. the new ones u get from napa just have the clips. :)
     
  7. opfor2

    opfor2 1/2 ton status

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    So I’m assuming that the new u joints with clips will work on my 90 Blazer? I was planning on going to NAPA to get them.

    Thanks

    Dan..
     
  8. Chaddy

    Chaddy 1/2 ton status GMOTM Winner

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    yes sir
     
  9. surpip

    surpip 1 ton status

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    what the P/N for the hi amp alt you have? is it a large case?
    yes the new joint will work with your d-shaft
     
  10. opfor2

    opfor2 1/2 ton status

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  11. mudslinger99

    mudslinger99 1/2 ton status

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    The factory joints come with a plastic retainer that has to be melted to get it out.. You will need a Oxy-Acetylene Torch to get them hot enough because a small bottle torch even with map gas dosen't get hot enough to melt them.. The new joints will come with regular clips to put them back together..

    As for what joint is the strongest or the best that would be depending on how much you want to spend and who you ask :D Napa has a couple different grades and I'm sure they will point you in the right direction..
     
  12. gmcjimmy90

    gmcjimmy90 Registered Member

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    i have used a little bottle torch many times and it worked fine
     
  13. stallion85

    stallion85 1/2 ton status

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    I would just take them to a machine shop and pay $20 to have your u joints pressed out and new ones in. Worth the trouble for me, at least for the CV's.
     

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