Around 45 miles an hour when I let of the gas I have a grinding noise and then stops around 30MPH. Don't know what it is or where it's coming from. Kinda sound like it's coming front the front.

1999 4.0 XJ.

 

Get it up on jack stands and turn stuff by hand. Chances are you'll find an issue with your U joints or brakes.

 

ok got it up in jacks and turned everything but didn't hear anything. Wheels had to play at the 12-6 and 3-9. Yesterday riding home from work the steering wheel made a sharp right turn unexpectedly took control and had to fight the steering for about a mile to get home. Parked it got out and smelled a burning smell from the front right wheel. Today put it on jacks and turned wheels again and nothing. Drove to work did fine didn't have any trouble or smell until I got a mile from home again and heard a grinding noise from the front right wheel again. Jacked it up AGAIN and turned everything and nothing.

Clueless at this point. At first I thought the brake locked up on me but they were fine. It 17 miles from work to home.

Any suggestions on what I can do replace fix anything will help at this point.

Thanks.

99XJ on 33's with 5 1/2" lift on front 6" on back.

 

Sounds like your ball joints are on the way out