Mike, I put some XJ main leafs (with the eyes cut off) in my MJ packs and got 2 inches of lift. This was enough for me to run 245/75/16 tires.
Maybe it was ME that you heard it from when you came down for the M&G. ;)
This is what it looked like with the modified leaf packs and V8 ZJ front coils and 1.5" coil spacers. The street ride was unaffected, but I don't know how it would be offroad.