Originally Posted by
Co1Ev
Good news - Just reinspected the nut and it came off without issue. Threading is a-ok on both the axle and the nut, so I'm beat as to what could've been causing it before. Though I'll be keeping a close eye on it for sure, I was really hoping it wasn't a stripped axle! Thanks for your help guys.
I think it was probably as
FBinNY suggested. The whole axle was turning.
Easiest to solve by tightening the nut on the opposite side, then removing the sticky nut, then hopefully get the opposite nut off too.