I’ve got a problem with my winch drifting off under load. This is a new to me boom truck RO Stinger 80-1 that I’ve bought and been working on to try to move a small grain bin with. Everything else works perfect on the machine besides the winch slacking off. I’ve taken the relief valves out of the manifold on the winch motor to check the seals and they are fine. Are there seals inside the cartridges that need to be checked or only the external seals? I can’t read the part# on the cartridges to be able to just replace them. I have deduced it down to either these cartridges or the brake, I’m not sure it has a brake unless it’s inside the winch drum. Any help or advice would be much appreciated. Thanks in advance!