I just picked up a '72 Jimmy in Texas and I have some questions for the experts. This truck has a stop bolted to the frame behind the drivers side front shackles. Can this be removed for longer (taller) springs? Also the early Dana 44 front has smaller u-joints - is there enough clearance for new shafts with bigger u-joints? The body on my Jimmy is in great shape, but I want to beef up the drive train a little to go with 33" or 35" tires.