another motor mount question?

Hey guys, I have read all the posts about motor mounts,and believe it or not I am still perplexed over my engine swap.I pulled the motor mounts from my 1972 Dart 318,went to mount them on my 1989 360 [which came from a 3/4 ton van for FREE],they dont seem to fit.I was going to make a spacer for the narrow one but it doesnt appear to be even close to fitting.What am i doing wrong? :sad2: