I have been having problems with locking up of my rear brakes. Usually it is one side (passengers side) but some times the drivers side decides to do it too. It feels like the shoes are stuck to the drum and if I can back up they break lose and all is good. I pulled the rear drums this morning thinking that I may have had a broken return spring but all was good other than having to tap the left drum lightly to get it off. I sprayed everything down with brake cleaner put it all back together again and all is good. Seems to really like to do it the most on wet or slushy days. I do have a 109 MC is an 88 if that would create problems. Any ideas on what this could be would be appreciated.
Jim