My 1985 Honda V65 Sabre project bike is making a rattling noise in the rear drive case, where the transmission final drive turns 90 degrees to the driveshaft. My question is, Can that gear case be removed from the transmission without removing the engine from the frame? If so, I will replace the unit, but if not I´ll sell the bike to someone with more time. I´m 75 and have six other bikes to work on. Thanks for your response. Gerald in Atlanta