42RH / A-500 in a Duster with pictures.

That looks a lot like this one. I'm putting an A-500 in my 67 Barracuda. If I use this transmission mount will I still have to cut the tunnel and reweld a u shaped plate in it's place? Have you or anyone else used these transmission crossmembers?

518 Crossmember Kit - 67-75 Dodge Plymouth A-Body 1967 Plymouth Barracuda Transmission Crossmembers | X-Parts X395-1067-3 (autometaldirect.com)

This is the one you want. Looks like AMD carries it but the first few pics are for a different application.
USCTAM2027-67-75 A-Body 518 Crossmember Kit