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U-Joints...

Discussion in 'The Garage' started by XHitman396, Mar 5, 2004.

  1. XHitman396

    XHitman396 1/2 ton status

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    ok ever since i replaced the first 2 joints, ive been going through them like butter, probably 5-7, all on the rear drive shaft, with a totally stock truck, and not really driving too hard. they look like they're burning up, are you supposed to pack them with grease before install? cuz i thought that vaseline lookin stuff was grease, so i didnt bother, so am i retarded? or can my drive shaft actually be bent? any help appreciated..
     
  2. john deere

    john deere Registered Member

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    if it has a grease fitting you definitly need to grease it.If your drive shaft is bent or out of balance then it would vibrate the truck at higher speeds.
     
  3. Hossbaby50

    Hossbaby50 3/4 ton status

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    grease them man, grease them. I believe that vasoline is just to make sure they don't rust. they need grease.


    Harley
     
  4. john deere

    john deere Registered Member

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    the littke bit of clear grease that comes in them is to hold the needle bearings inside the caps during instalation
     
  5. Hossbaby50

    Hossbaby50 3/4 ton status

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    ya, that too
     
  6. rjfguitar

    rjfguitar 3/4 ton status GMOTM Winner

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    /forums/images/graemlins/yikes.gif It says on the box that you are supposed to grease them before installation. That would be why they look burnt up.
     
  7. heavy4x4

    heavy4x4 1/2 ton status

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    Yes, grease them (put some wheel-bearing grease in the caps before assembly if the joints aren't the greaseable type).
    And, when you press/pound the caps on, make sure the joint rotates freely. If the ends of the u-joint innards are pressed up against the caps, that will cause excessive heat. If you find that you've installed it and the caps are indeed too tight, just set the joint on an open vise in such a way that hitting the yoke of the driveshaft will push the caps out and make the locking clips come into contact with the inside face of the yoke (make sense? if not, I'll try to explain it better)
     
  8. 84_Chevy_K10

    84_Chevy_K10 Banned

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    New non greasable joints do not need to be greased on install but I usually give them a fingerful anyway.

    Greasable joints MUST be greased upon install.

    Make sure the caps are not turning inside the yokes too. If the yokes are worn out, they might need to be replaced.
     
  9. hardcore71

    hardcore71 Registered Member

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    Do not put any extra grease in GM u-joints. In fact the instructions tell you not to mix up the caps during assembly because each one gets a predetermined amount of grease. Steve at ORD was telling me that Spicer non-greaseable are not supposed to be greased either.
     
  10. detailer03

    detailer03 1/2 ton status

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