[Poontang]

My truck has a low speed driveline squeak (squeaky rubber sound) and some weird clunks. It also makes some weird noise when going down a hill in second gear (6sp manual) while using the engine to hold it back. I suspect the rear U-joints so checked them out. They are the origional U-joints (35000 miles) and seem OK but appear to have thrown some of their grease out. The only troubling thing I found was the amount of play in the tailshaft of the transfer case when I push up and down on the drive shaft to check out the U-Joints. How much play is normal here? and could the squeaking sound come from the little rubber dust shroud on the tailshaft housing? Any other ideas?

 

[fjlinhares]

I just went outside and checked mine.Their is no play where the drive shaft goes into the transfer case.I know my truck is older,but I do not think you should have alot of play their.

 

[Poontang]

Hmmm that doesnt sound too promising. Is there anywhere on the web i can get specs and diagrams of a np271?

 

[NOSPARK]

one of your ujoints is bad did you actually take the driveshaft off when you checked it?

 

[Poontang]

one of your ujoints is bad did you actually take the driveshaft off when you checked it?

no, i just climbed underneath to see if there was any play in them or obvious signs that the rollers were shot.

 

[cumminspwr600]

the one that has the grease coming out of it is probably the one squeaking im guessing that it also the rear u joint that exactly what mine did

 

[NOSPARK]

take the driveshaft off and then check them bet you will find one that is siezed up