[Excaliber]

When I changed mine one side was a bear, the other popped right out. I got a BIGGER hammer and CLOBBERED that sucker until it finally popped on the bad side. No chain,,,I used a floor jack with about a 1/4'' clearance between the top of the jack and the bottom of the lower a-frame. Plus I leave the castle nut screwed on a few threads so it won't pop out to far anyway. Heck, I always do it that way.

Ernie