ronmorrisperformance.com look under online store at transmission parts. What I have is code #7121 crossmember and code #7113 trans mount. Should work for your application but u could call them to be 100% sure.
I believe the aod mount is in a different spot moved back from c4 a few inch's. This mount bolts to factory holes and moves trans mounts back so you can mount aod with out having to cut,weld and drill new holes.