cherokee u-joints

[CHEROKEEMUDDER]

Hi, im 16 and have a problem with my cherokee. Its a 94' 5-speed manuel. It goes fine in 2 wheel drive but when ingaged in 4 or 4-low it knocks and jumps around. I believe its the u-joints but want some advice before i do anything. Thanks alot and i hope someone can help.

 

[TwistedCU]

Not knowing what you do and do not know, I am assuming you are not trying to use 4WD on dry pavement?

That's a no no and trying to do so will make for a herky-jerky front end and can be damaging to many drivetrain parts.

If I am way off and you are having this problem where 4WD should be being used then you can easily inspect your U joints by turning the driveshaft by hand and looking for play and listening for clicks. Any play in them means they are worn.

 

[Bounty__Hunter]

You can twist the driveshafts by hand with the jeep secured, and see bad ujoints. it's possible the problem is inside your transfer case, like a stretched chain.