Everything appeared to be just fine but I replaced the springs anyway. I was feeling pretty guilty for neglecting the winches since buying the boat last year and I feel much worse now as it appears to have been years before that since they last had a little attention. The internals were absolutely gobbed with grit and grease.
I replaced the stripper rings as well. The phillips head machine screws were quite loose (see picture below) when I disassembled the drum, are they supposed to be that way or should they be tightened during reassembly?
Happy to tick one project off the list, so many to go before launch