Ben824
NAXJA Forum User
- Location
- Woodstock, GA
My cousin has a 3.5" lifted 99 XJ with the rear C8.25. We did the Dirtbound hack and tap with a modified stock front driveshaft that was rebuilt, slightly shortened, and balanced. We put an angle finder on the driveshaft and got a degree of 17 and on the axle it was 11 giving us a difference of 6. He has no t-case drop and has 4 degree shims. He is getting some vibe around 35-45 still, that are most apparent under load and up hill but can definitely be felt all the time in that speed range. We compared this to my 97 with the same 3.5" lift, same rear axle, no shims, t-case drop, and stock rear driveshaft. The driveshaft is 15 degrees and the axle is 8 degrees giving us a difference of 7 degrees. My XJ has nearly no vibes atleast not from the drivetrain.
What we want to know is if we need to put in the 6 degree shims that he bought or should we look elsewhere to cure the vibes?
What we want to know is if we need to put in the 6 degree shims that he bought or should we look elsewhere to cure the vibes?