Just as it says, my jeep makes a nasty growling/grinding sound when im on the gas in 4wd and all the time it chirps like a bird definitely coming from the front end, sounds like metal on metal and its getting worse by the day. Im thinking one of the u-joints on the front Ds is bad, just wondering if this a reasonable diagnosis?

 

Bump, im going to pull the almost new u-joint's out of my old bent driveshaft and see if it fixes it.

 

Yeah its your drive shaft u-joints.

Mine was doing the exact same i replace my ujoints and made a worls of difference.

 

yup, that would be your double cardan joint. you should grab a center ball kit while you've got it all apart.