Power Steering Leak

My stock power steering has begun to leak. It's on an '89 XJ Wagoneer LTD...with 4.0L engine. Can't really tell where leak is...seems to be reservoir. Is there a way to do remote reservoir, or should I just get whole new pump and reservior? Reason I ask is that I'm running 33's and a new pump and steering box are not out of the question.

Any help is appreciated.

There is an "O" ring between the two that will fail over time and cause a leak. The two are seperated by sliding the 2 or 3 clips off the unit,after un-bolting it.O-ring is on a nipple on the resiviour(sp).Find a generic one that matches no need for a factory part.
Wayne