Replacement end frame winch from Lucas Mill. End frame winches drive the lift chain systems. It is often less expensive (when considering time and money) to purchase a complete new winch, instead of rebuilding an old one. End frame winches have been updated over the years. This is newest version, denoted with a red crank handle. This unit comes complete with a new stabilizer side sprocket (LF-29) also. You will need to change out your old stabilizer side sprocket if you have a winch with a black handle.