I've got a 64 FLH that has a pan bottom/shovel top end. As with most pans, it leaks from the primary...my understanding is that this is how the final drive chain gets its lubrication. Also, the primary cover has a few tabs broken off, so it doesn't seal well. The time has come to replace the primary chain and I was wondering if there was a primary belt system for it that would fit within a stock ( or stock looking) primary cover. I do not want an open primary. Would I have cooling issues with a belt drive enclosed in the primary cover? What about clutch lubrication???? Obviously, I would have to manually oil the final drive chain, but I see that as a small price to pay.