ok not 100% sure on which way to install rear main seal. it's the 1 piece fel-pro if that makes a difference.

pic 1: this side is flat


pic 2: this side is cut out.



I think the flat side goes toward the flywheel, and the cutout side goes toward the inside, is that right?

also, when installing this while putting my shortblock together, should i put this around the end of the crank before putting the rear main cap on, OR install the rear main cap Then install the seal?