I am running fixed calipers on the back of the ol 72 and have a lot of play in the axles. I don't want to run into the dreaded caliper piston bump back while doing some spirited driving and need some input on the best way to handle the issue. I heard that Toms differentials has c-clips in different thicknesses ,but on his wed site ,he says they are undersized to allow aftermarket axles to be installed without grinding the ends. It is also my understanding that .005 to.008 is about the right end play. I have .045 and .055 clearance between the center pin and the axle tips with the c- clips installed. Can I get over sized c-clips to fix the issue or am I going to have to weld the ends of the axles and grind them down to get the right clearance or can I use shim washers between the c- clips and the recess they sit in. The axles are nearly new Summit brand untappered axles and the rear is the standard 8.5 10 bolt. Big gear head, if you are out there ,give me a hand on figuring this out, Or anyone else that has the inside scoop on what Im trying to do. Thanks in advance!