Off the shelf is nice. One of the reasons I didn't do it. I know 46RH uses electronic OD, and 3rd and OD lockup. And I *think* A518 = 46RH. So I didn't want to deal with that, although there's probably an easy solution.
I have an RH, the RE is electric LU. You can run the H off of NOS switches. The Hwas pretty limited year wise of production. With the H you should be able to use a 727 TC. This is off my poor memory as I went a different route with my transmission.
