Synthetic lube and leather seals

I see that. O'Reilley's shows it to be leather too. I've bought many over the yrs. and never once saw one made of leather. The real old cars used leather seals but I believe they were pretty well all phased out by the 50's. I'd say just go with it no matter what the description says. If you have a 742 case the timken 7216 seal is correct for it. Let us know when you get it what it's made of. My bet is it'll be neoprene. BTW: I've used synthetic gear lube with no issues.

Hey I just noticed your location. I'm just 45 miles n.e. of St.Louis so were not real far apart. My Uncle worked at the Chrysler assy. plant from 1960 until he retired sometime around 1990 (I forget exactly when). What a lucky dog he was to get to see our iron being built and even got to drive some very rare Hemi cars.