727 Rebuild Blues
Early on when I started rebuilding them I used Vasoline for a number of yrs. and had no trouble. Been using stuff specially made for transmission seals for about 15 yrs. now but to be honest I have no way of telling it works better since the Vasoline always worked fine. The trans. lube seems to last longer and is cheaper in the long run so that's a plus.
The front drum appears to engage slower and softer compared to the rear clutch because all the rear clutch has for a return spring is the Belleville spring. Doesn't take much to compress it.