Noise between bellhousing and Engine

Cuda Al said
The one on the left is the correct one, not sure what the one on the right is for.

Oil pan seals
View attachment 1715922016

Alan

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.