Originally Posted by
b20btec
You can try two things, lightly dremel the pin so the set screw can have more contact or try using heat shrink over the axle area. I've used Heat shrink in the front but never in the back so you're going have to experiment. I have experience a pin backing out before so I do dremel a small flat.
Thanks. How can you heat shrink it? Won't that restrict the axle freedom? Are you able to take a pic?