New Holland TC25d broken Transmission Hub spring

[sean simmons]

My tractor had been sitting a while. Used it to load 3 attachments and itself onto a trailer, and then offloaded the same at new property. Then as I was going to park tractor I depressed clutch and nothing happened, so with brake on it bogged down. It behaved like a stuck clutch but it had been running. Tried the usual stuck clutch tricks, but nothing. Pulled the side inspection panel and can see a small spring with a broken end. In an exploded view of the case, it appears to attach to the release hub. Would that cause the clutch to stick? Can this be replaced without cracking the tractor?