Gear Clunking

[Mxpx182lit]

1061245

in my 1999 TJ I recently had a new set of 4.56 gers installed with a set of ARB air lockers. Now whenever i accelerate fast or hard the make a loud clunk sound. Does anyone know why it is doing this or how to fix it?

Justin[addsig]

 

[Bounty__Hunter]

1061435

Check the u-joints in the rear driveshaft for wear :-D [addsig]