i had the same proablem with mine and it is definately axle wrap! extend your spring perches forward 2 or 3 inches, i did mine and i havent broke since. i replaced the stock style perches with 2.5X2.5 1/4 wall tubing notched to confourm to the axle tube and instead of makeing them 4 inches long with the alignment hole centered, i made them 6 inches and put the hole to the rear two inch mark directly over the axle and left an extra 2 inches forward of the axle to work as a lever, works like a charm and i got an extra 1.5 inches of lift out of them too