Ive done the search and cannot find any answer to my question about what length of driveshaft i need for the advance adapter sye i know i may be able to use the front for the rear but i wasnt sure if this was correct im running currently a 3" rc lift in front and a 2" leaf pack in rear but am going to 6" deavers shortly does anyone know anything about what i should do? any help is appreciated thank you

 

I'm at 7.5 lift height and a front driveshaft has been working great. The best way is to installs your sye and then measure. You'll be good with a front shaft from an aw4 xj though.

 

Yeah it's pretty difficult to say exactly what length you'll need. Every rig is different, even if they have the same height lift on them. Check out the website for Tom Woods Driveshaft. They have a good way of measuring. But the general rule is that you're going to have to install the SYE and then measure it for driveshaft length afterwards.

 

It will depend on the leafs. When I swapped out my re for rustys it moved my axle back, which was great, but I had to lengthen my stock front I was running on the rear about 1.5"