1948 Chevrolet Pick-up (1/2 Ton) actually my chassis is off a 1951 truck; noticed I have a small leak on my rear differential, seems like it is coming from the Front, where the Driveshaft connects. Was just curious, is there a Gasket for this, or supposed to use sealant? If sealant, what type/brand of sealant is best, how large of a bead to run, what do folks on the forum recommend? Also, when I put everything back, what Ft Lbs of torque should I tighten the nuts to? Appreciate any insights!