I was driving down Monterey Highway in San Jose on Saturday and there is a place near the PnP that is just Van, Trucks and SUV's. I have never been there but I wouldn't mind checking it out someday. I don't know if they pull the parts like a truck wrecker or if you pull them.
PnP Newark always has the most XJ's and trucks by a good margin. Oakland stinks! For an 8.8 I would go on Car-Part.com then call the yard. I had to drive to Watertown (other side of 99) for mine, but I got a clean and perfect 96 Exploder 4.10 limited slip axle with all brakes and brakelines and cables attached for $250. They are $200 at PnP if you can find them and by the time you paid for all the extras I got you'd be into it the same amount.