phyd
NAXJA Forum User
- Location
- Lansing, MI
Ouch - I just wrote out a few pages about this problem I'm having - I guess next time I'll learn how to use notepad, huh? Alright, here we go again:
I've got a '99 XJ 4 liter, NP231, all stock. Right now I'm trying to track down a rear differential noise I'm having, but I thought I'd ask some knowledeable XJ people before I dug into it too far.
The noise occurs when I'm on the throttle lightly at highway speeds. It's coming from the rear of my Jeep, so I think it's coming from the rear diff. I already took a look at my transfer case, but I don't see anything wrong with it. When I replaced the chain in my transfer case a few months ago, I visually inspected the bearings, and the synchro/blocker ring in the transfer case. I didn't see anything out of the ordinary, and all the parts were in good condition. So, I'm led to think the rear differential is making noise.
I haven't measured anything in the rear diff, but last time changing the diff fluid I noticed that the wear pattern on the ring gear was on the outer edge of the gear. I don't know whether this is a common occurance on these differentials or not, so I thought I'd ask.
I also found a Differential overhaul kit at http://www.tellico4x4.com/axle/installax.htm but I don't know whether or not this kit comes complete with shims for the pinion gear. I also don't know what differential is in my XJ. I think it's the Dana 35, but I'm not positive - how do I find out?
Does anyone have any other idea on what may be wrong?
Thanks,
-Scott
I've got a '99 XJ 4 liter, NP231, all stock. Right now I'm trying to track down a rear differential noise I'm having, but I thought I'd ask some knowledeable XJ people before I dug into it too far.
The noise occurs when I'm on the throttle lightly at highway speeds. It's coming from the rear of my Jeep, so I think it's coming from the rear diff. I already took a look at my transfer case, but I don't see anything wrong with it. When I replaced the chain in my transfer case a few months ago, I visually inspected the bearings, and the synchro/blocker ring in the transfer case. I didn't see anything out of the ordinary, and all the parts were in good condition. So, I'm led to think the rear differential is making noise.
I haven't measured anything in the rear diff, but last time changing the diff fluid I noticed that the wear pattern on the ring gear was on the outer edge of the gear. I don't know whether this is a common occurance on these differentials or not, so I thought I'd ask.
I also found a Differential overhaul kit at http://www.tellico4x4.com/axle/installax.htm but I don't know whether or not this kit comes complete with shims for the pinion gear. I also don't know what differential is in my XJ. I think it's the Dana 35, but I'm not positive - how do I find out?
Does anyone have any other idea on what may be wrong?
Thanks,
-Scott