Noise between bellhousing and Engine

Oldmanmopar said
The one on the left is the correct seals for 69 and earlier oil pans. front and rear. The one on the right is correct for 70 and later front and rear 318-340. 360 has a different rear pan seal but uses the one on the right for the front.

See if you can move the crank front and back. You don't have to take anything apart to do that.