The ? the lower caliper bolt in the swing arm is giving me all kinda 4377 and a lot of grief.

I got the rear wheel out of the back end with the drive shaft. Now that i have acsess to that area i soaked that bolt with WD-40. If after soaking all nite she don't wanna break loose any and all ideas are encouraged and welcomed. The really good news is the splines look really great. Still had some lube on it. No signs of abnormal wear. Front anf rear brake pads are worn out. New ones are ready to install. So again any help with that rear lower caliper bolt TIA

RIDE SAFE
