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Stock XJ Cherokee Tech. All XJ Non-modified/stock questions go hereXJ (84-01)
All OEM related XJ specific tech. Examples, no start, general maintenance or anything that's stock.
Yeah, still has vibrations with the front DS in. I'll put the output shaft(s) on the list! Thank you!
You misunderstood me. Take the front shaft out. See if your vibes go away. If they don't, swap the driveshafts, try again with just the swapped rear shaft in. You're trying to eliminate the driveshafts from the equation. Then while doing this, you can put eyeballs and hands onto the yokes of your axles and TC, and check for excessive play/slop in the bearings.
Edit: this will only work if you have a SYE installed...my bad lol...but the point is the same. Take the front shaft out and see what happens
If its a 96+ xj (if ive missed the jeeps actual year) you can still remove rear driveshaft without puking fluid because they are a sealed output . Have you inspected your trans mount?
If its a 96+ xj (if ive missed the jeeps actual year) you can still remove rear driveshaft without puking fluid because they are a sealed output . Have you inspected your trans mount?
LOL I appreciate the help! I did drive it without the front DS for a couple weeks, just around town, after doing the highway test and still experiencing the vibrations. That was before I replaced the rear DS. Other than cleaning the yokes up before installing the drive shafts, I didn't really check for slop. I should do that.
SO.....bear with me on this. I think I have the pieces in order....
1. My initial experience of the vibration was on a drive on the highway which had my bike on a hitch rack shaking/bouncing at high frequency, the kind of frequency you wouldn't want a bike to be shaken at for very long.
2. I pulled the front DS and drove it briefly on the highway again, and there was still significant vibration, so the front DS was likely not the issue.
3. Replaced the transmission mount, which had broken completely on one side. Put the front DS back in and drove it North to ski, vibrations galore.
4. Stopped on the way home and had Discount Tire rotate and balance. They said one of the wheels had too much weight added, so they took some off. Got on the highway, still had bad vibrations.
5. Replaced motor mounts. They looked bad, but not that bad. Test drive, still vibrated.
6. Pulled the front DS again to check the yokes for slop. T-case output yoke has the sliiiightest amount of play. Pumpkin yoke feels solid. Took it for a test drive. SMOOTH AF.
So....here's what I think the deal is. The original experience (#1) was a combination of vibrations from an unbalanced rear wheel AND the unbalanced front DS. The T-case output bearing might still be in play here, but I can visibly see the grease collar is not centered on the front DS. So, when I took the front DS out (#2) I still had vibrations from the tire, and when I had the tires balanced, I still had vibrations from the front DS that was back in. I'm going to get the front DS looked at. For now, the Jeep is riding awesome, happy with new motor and trans mounts, new rear DS, and cruises on the highway like a 250k mile XJ should.
03-22-2022, 06:34 PM
