So what happens if you keep the old /6 rear end after 360 swap?

Pettyblue,I saw a guy at our track do that exact same thing in a 70 Duster, his 1/4 panel wasn't so lucky as yours!
Speaking of Dana's...after I blew the Dana 60 up in the Dodge, I got another one at the junkyard and a buddy helped me stick it in the bed of the truck. Sometime later, I got the blown rear end out,and went to get the replacement out of the truck bed. I couldn't lift that big old pig out by myself, so....I got in the box and pushed it out with my feet!
That Dana hit the driveway pretty hard, but didn't get hurt a bit! Took one hell of a chunk out of the driveway though!
I guess they're pretty tough! 2 tons of fun...no wonder they last in dump trucks so well! LOL!
alan627b