00XJMiami

So when I am driving, I have this strange grinding noise, ONLY when I let off the gas and let the jeep coast. It's kind of like the pitch goes down as I go down in speed. Could it be the transfer case chain? A U joint?

I have a ghetto lift with 33x12.50's on 15's the lift is equivalent to 4.5 ish

Please help it's driving me nuts it scary as ****

XJmike0122

Is this a new noise or did it start after the lift was installed?

00XJMiami

I don't know I just got this car,

XJwonders

What jeep do u have, year, engine, trans, transfer case, axles etc?

00XJMiami

**** sorry haha,

200 Jeep XJ 4.0 Automatic NP231 D30 up front Chrysler 8.25 in the rear

2000chersport

Torque converter possibly

00XJMiami

Don't say that! That's a curse word. And why would it be the torque converter.

JerrytheJeep

Do you have an sye?

00XJMiami

I do not actually, but it's not that kind of grind, sounds more like gears

JerrytheJeep

Make sure all your fluids are topped off. We'll go from there

2000chersport

Could be a u joint

Mendax13

it could be all kinds of things wheel bearing/axle bearings pinion bearings. your differential gears. transfer case chain. u joints. take a look at u joints as they're out in the open and require no dis-assembly unless suspect. look for signs of rust around the caps. or even missing caps. try to find if its front or rear. and maybe start at that differential/ axle

RubberSideUp

Post a video of the noise if you can.

Turbo X_J

A "howl" type sound when coasting in gear is "usually" a pinion bearing going south. Check the rear differential fluid level & condition, go from there.

00XJMiami

Took it to a shop, cause I was going nuts already, they said it was the transfer case chain. They're gonna open it up on Monday to see