Okay, to start off, I'm no mechanic, but I try, so bear with me....
I have a '97 cherokee, 4WD, manual, about 90K miles...
I'm having the much talked about front vibration problems, starts at about 40mph and gets worse the faster you go. It felt exactly like a tire that was badly out of balance, so I put my other set of wheels and tires on, no change at all.
I just replaced the front U-joints this past summer. I checked them anyays, feel okay.
I though it was bearings, so I jacked up the front end and tried shaking the wheels, no unusual movement, at least not that I could tell.
I read about the front drive shaft, going to the front differential, so I tried shaking that, it doesn't move up and down or end to end. It can rotate slightly, but I think that is normal.
I tried the "putting it in neutral at highway speed and turning it off" method, it still does the same thing.
SO, any thoughts? Might it be bearings, even though there is no excessive movement? Any other clues? Any help would be appreciated, I don't want to walk into a repair shop blind. Thanks!
Is it stock height or lifted? If lifted I have a 1" TC drop kit from Rusty's I didn't need. I started to round out the holes a bit but never installed it. Cost $20 + shipping from Rusty's I'll do $15 shipped. You'll need 1 more bolt for it though, one got stripped from the kit. I think it's about $2. Just something to think about if you have a lift.
I 2nd getting an alignment. Ive been told you can also pull the front driveshaft off, it can be out of balance even though it might not look like it... But if you pull it and the vibes go away then theres your issue. I would start out with an alignment first though.
'97 XJ... 4.0 4x4 AW4. 2" budget boost w/t-case drop.
31x10.5 Cooper Discoverer ST's on 15x7 Cragar Soft 8's.
Intake, Ported TB, TB spacer, Super 40 Flowmaster.
Baja Aux. Lighting. Green Jeep Club #185, Nowhere to Wheel Jeep Club member #1
'04 WJ - Columbia Edition - 4.7HO 2WD
i'd suggest a bent rim or a tire missing a weight.
2000 XJ silverstone metallic.
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