87baseomatic
NAXJA Forum User
- Location
- North Jersey
I'm getting vibrations from about 55mph and faster from my jeep.
Run down on the xj. '92 4.0 223k miles, aw4, np242, hp d30, d35. Motor and trans mounts less than a year old. Front spicer ujoints and unit bearings less than a month old. Both driveshafts have fairly new spicer ujoints and have been checked and balanced at the local driveshaft shop. BDS 3" lift with a t-case drop, 30x9.5 bfg at on cragars d windows. Wheels aren't bent and tires balance out perfectly. Tracbar is about a year old and tierods and draglink are under 2 years old. No play found anywhere in the front end or anywhere else on the truck. All the fluids are within a month old and everything looks good in the diffs when I changed them.
If I pull the front driveshaft the vibes go away and the jeep is smooth up til about 80, I haven't tried to go faster. I tried using the front shaft off my fathers 01 xj and the vibes are still there. I put my driveshaft on his xj and no vibes.
Is it possible that its being caused by the transfer case?
Run down on the xj. '92 4.0 223k miles, aw4, np242, hp d30, d35. Motor and trans mounts less than a year old. Front spicer ujoints and unit bearings less than a month old. Both driveshafts have fairly new spicer ujoints and have been checked and balanced at the local driveshaft shop. BDS 3" lift with a t-case drop, 30x9.5 bfg at on cragars d windows. Wheels aren't bent and tires balance out perfectly. Tracbar is about a year old and tierods and draglink are under 2 years old. No play found anywhere in the front end or anywhere else on the truck. All the fluids are within a month old and everything looks good in the diffs when I changed them.
If I pull the front driveshaft the vibes go away and the jeep is smooth up til about 80, I haven't tried to go faster. I tried using the front shaft off my fathers 01 xj and the vibes are still there. I put my driveshaft on his xj and no vibes.
Is it possible that its being caused by the transfer case?