[quote=ikidd;15848622]Followup on this, yes, it works.
Downside is you have to change the axleshafts and knuckles to get the ABS sensor and ring.[/b]
A lot of XJs have ABS brakes too, and as far as I know a lot of the knuckles on '90 and up XJs are equipped with the threaded holes for the abs wheel speed sensors. Both of my '90XJ had the holes, so did the axle that came out of the '99 XJ that had no abs.
Of course, if the axle came out of an XJ that had no abs there won't be sensors or ABS shafts installed so in minimum you do need the shafts with the ABS tone rings, and remove sensors from old knuckles and bolt them in to the XJ axle.
I run it on 1.75" with zero issues. I tried without any bumpstops and wasn't hitting anything; pinion yoke would've been a very close fit @ full bump without slightly modifying the driver's side downtube. Full articulation is not a problem, since when the drivers' side is tucked up and pass side drooping, pinion shifts away from the block.
That being said, @ stock height (or lifted with zero added bumpstopping) I wouldn't run a HP D30 without double checking on the exhaust/ pinion interference.