Daedalus454
NAXJA Forum User
- Location
- Simi Valley, CA
I had 4.56 gears put in last week, and since then, in addition to the driveline vibe issues, I have had a strange and rather bad-sounding noise from the rear diff. It's very low-pitched, I can feel it in the floorboards and the steering wheel, and it occurs when I go from accelerating to coasting. When I am accelerating it's quiet, and when I am coasting it's quiet, it only makes noise during the second or two when I transition.
With all four wheels on jackstands, with the XJ running and in gear, the passenger tire spins and the driver's tire remains motionless. When I hit the gas, the grinding noise occurs sporadically, and each time it does, the driver's wheel rotates a little.
I examined my side and spider gears, and it looks like my spider gears are worn out, but is that likely to cause a problem like this? It was fine until I regeared, but the carrier and spider gears shouldn't be turning any faster than they were before at the same speed, correct?
With all four wheels on jackstands, with the XJ running and in gear, the passenger tire spins and the driver's tire remains motionless. When I hit the gas, the grinding noise occurs sporadically, and each time it does, the driver's wheel rotates a little.
I examined my side and spider gears, and it looks like my spider gears are worn out, but is that likely to cause a problem like this? It was fine until I regeared, but the carrier and spider gears shouldn't be turning any faster than they were before at the same speed, correct?