Done many with a 36" pipe wrench, don't ever remember " marking up a yoke". The pipe wrench doesn't have to be "killer tight" on the yoke. I remember doing a few rear end jobs before this, but I've done more of them since I've also gotten my 2 post lift... Thousands of times easier that way.that plus getting my son to come over and "man" the pipe wrench and cheater pipe while I tighten the yoke nut