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Discussion Starter #1
Change my damn U-joints again.

The YJ has recently developed a severe case of driveline vibes and I just got back from driving it and it makes a new noise. It creaks when I start off in first and then I can hear the u-joints squeaking in first and second. As soon as I put the clutch in or get off the gas the noise goes away too.

So my question is this...what else should I look for to check and possibly replace while I'm under there?

BTW: the creaking noise is kinda like the same noise my Jeep made right before I tore the shackle hanger off the frame. Checked that out and it looks fine so I don't think I have to worry about the axle falling off while driving :relieved:
 

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I would alternately pull the front and rear shafts and drive around in 4 HI to see if you can isolate the noises.
 

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Everyday is Tuesday.
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Are your ubolts tight? If not, the creaking could be them torquing up under load, which would also severely decrease the life of those ujoints.
 

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Discussion Starter #6
'95 YJ
-SOA with stock springs
-HD shackles (1/2" lift)
-NP231 w/ Currie SYE and Tera 4:1
-CV shaft in rear (shaft is 19 3/4")
-stock shaft in front <IMG SRC="smilies/tongue.gif" border="0">
-33" MT/Rs
-4cyl and 5spd so thats a pretty short combo

I got underneath it and I can yank on the rear shaft from side to side and it moves a bit at the t-case end. Also has some noises associated with me moving it. The front shaft is pretty much completely worthless at this point because I can move the shaft side to side and watch the play in the slip yoke. Also I have pretty horrible axlewrap in the rear because I have beat the hell out of these springs. With nothing in the back (no spare tire, no seat, no gear) I have negative arch in the springs. In the front, the springs are flat if not negatively arched. I'll try torquing down the u-bolts as well but I'm pretty convinced its just the u-joints in the rear shaft, specifically the t-case end where the CV is.
 
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