vssman

Hey guys:

I have a grinding/rattle that I can't figure out where it's coming from. When stopped and applying pressure to the steering wheel (toward the left), I hear a pretty loud rattle. Also, if I turn a hard left at speed, I'll hear a grinding sound from the front right. I've replaced the U-joints and hubs. Brakes look good, no marks and clears everything ok. The dust shields a clear and I can't see any marks on any rotating parts in the front. Doesn't matter if the front end is locked or not (4X4). Motor mounts look good and I don't see anything touching the frame, etc... Are there any bearings on the right side of the axle other than the hub? I think I have 2 different problems with the first being the PS pump and the second being a rub or bearing somewhere. Any help would be appreciated.

Truck: 96 4X4 2500

DC199512V87

i Have a similar sound but thats cause i know the front wheel brgs are toast and the brakes ate worn. Makes for a noisy front end.

98fargo

This might sound silly but check that the exhaust isn't hitting anything, especially around the transfer case.

vssman

Exhaust is clear, motor/tranny mounts look good - nothing appears to be hitting. The sound is very pronounced after going over a speed bump when the front end compresses and rebounds. Brake calipers are sliding freely, no marks on the inside of the rims or the axle shaft at the tube or knuckle. I'm stumped...

plow

From your last post it sounds like a shock or spring.

DC199512V87

X2. From that i would check for loose/broken coils and shocks, coil mounts n bolts, etc. Check all things suspension

98fargo

I agree with something spring related, check the rubber insulators on top of the springs, maybe ones wore through?