I agree with Dave, I`ve heated a few of them, then quenching with penetrating
oil, using a six foot long breaker bar to boot!
I don't know if I`ve softened them of hardened them even more?
Couldn't be good either way!
All in all though I think that the person who said to rent a 3/4 inch
electric tire wrench is right. That's what I`ll be doing from now on.
Best of luck!
John C.
SLC, UT
85 Westie (Rubber Soul)