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Yes, mainly boom but center pin, or the load rotation bearings (forgot the name) they replaced the hook roller/center pin setup, these are bearings with big ball bearings inside, the outer race is attached to the upper, the inner race is attached to the lower, the ball bearings are trapped...

A small winch as winches go. The rating on a crane has NOTHING to do with line pull, it has to do mainly with structural strength, secondly tipping, on most cranes including military wreckers/cranes the working line drums will have enough line pull if rigged for a heavy lift is easily to exceed...