318 Rear Main Seal

I wonder about using RTV. I recall instructions to use a few drops of "anerobic sealant" between the metal surfaces. Maybe that was for my later Mopars (2.2 or 2.4L), or maybe my 383. Anyway, the same principles should apply since the same issue of sealing steel-steel. Not sure we had RTV in the 60's or maybe anerobic sealant is newer. We want a thin sealant that provides tight metal-metal contact so the bearing is well supported, but seals oil leaks long-term.

Rotating the seal so the split halves don't align with the bearing mount's sounds like a good idea. I didn't in my 273 because I followed the TSM, but that is the instructions for the big block and slant as I recall (no wings). If anyone is doing this to just fix a rear seal leak, they should know that you can do this fairly easily in the car with the crankshaft in place.