I read through a lot of posts but can't seem to find an answer to this other than it is a common problem. I have a 1996 Sportsman 500 that I have removed the "U-joints" from both rear axles but I cannot get the yokes to come out of the rear diff. I have both bolts removed from the centers of both yokes that screw into the spacer inside of the diff, I have tried lubicant and rust penetrating oils, center bolt pullers and a hammer shaft puller. I removed the seals and applied heat on the inner bearing race and heat on the yoke inside of the housing and heat through the center of the yoke after taking out the bolts that are to hold the yokes into the diff. CAn anyone offer any suggestions?