ive been thinking about doing something horific to my axle to help elieviate some pinion angle, the ole cut and turn. i have only heard about it and seen very little about it on a chevy axle. i think since the spring perch is cast into the housing i will need to weld some shims to the axle, or have it milled (not an easy task). then cut and turn to get the caster at the right spec. how would i go about this, cut the tubes and weld it back together? or grind the weld down at the inner C and tap it to the angle required? i don't like the idea of cuting the tube, i know if its done correctly it should be just as strong, but i don't have a welder big enough to do that. also what if i don't get it straight, it may cause more problems than i am solving. grinding down the weld, to me, sounds like alot better idea. are the an interfierence fit? will i be able to turn them once the weld is ground down? could i posibly heat the inner C up and turn it? also if i get a 15* shim (if i can find one) i would have to turn the knuckles 15* back right? has anyone here done it? am i missing something or thinking incorrectly? BTW i have a spare housing that i am planning to do the surgery to so my truck isn't down long.