their is a good write up on jeepin.com about this i think. Be sure to get the hole you need to drill as much in the middle as possible, i'll tell you that. I was thinking about the RE SYE, but cutting and drilling the output shaft is kinda scary, so i think that i'm gonna got for the JB conversions one, or Tom Woods.
Later,
Todd
88' XJ
3" rusty's
1.75" Shackles
2" RE spacers.
Rusty LCA's.
RE extended slip yoke.
RE adj trackbar
Quadratec SS Brakelines
31" goodyear wrangler at's
Sway-bar disco's