The problem was badly worn top Paws (SP). The corners of them were scraped off. Only two paws were used even though it had holes for four paws. With the spare parts I had on hand, I put 4 paws in and it seemed to work OK for an old winch. These are No-Name aluminum winches.
When I had the winch apart I made a stencil/scraping of the mounting base. It has 6 mounting bolts. Still looking to see what winches your using.
Rehoboth Bay/Indian River, DE
S/Y KJ, Helms 25