Originally Posted by IDIdiesel
the motor does turn by hand. Iv never turned another winch motor by hand so I don't really know how hard it should be but it takes some good effort to turn it while engaged. The clutch does disengage and allows it to spin really easy
It should be pretty hard to turn the spool by hand with the clutch engaged since you're actually turning the motor through the gears. Since the driving force of your hand is moving backwards through the gearing, your efforts are actually being reduced instead of magnified like the motor power is when moving through the gears in the other direction. With the clutch disengaged from the gears, all you're spinning is the spool. It sounds like you may indeed have a good winch there.
Check out this thread for lots of great info. > Warn 8274 rebuild
Post 149 explains that the control coil grounds through the solenoid casing so no control ground wire should be needed, but older winches can develop oxidized ground paths and benefit from a ground wire added to the unused control terminal(s).
You can lightly test a soleniod by running a temporary ground to the not-connected control terminal (since the case isn't grounded when the assembly is out of the winch) and a +12VDC signal to the other and listening for the click of contacts engaging. You should read minimal resistance across the primary power terminals when the coil is engaged.