I just received my Allison Transmission Push Button Shift Selector back from the repair people. They replaced one new board and replaced the overlay.
The Unit looks new with nice bright lights and new feel to the shift buttons. I posted my water on selector problem elseware. The DD shop sent it to;
DMR Electronics, Inc 1111East 7th Ave Hibbing, MN 55746 (218) 262-6693.
I hope you never have to use them for the same reason I did but it's nice to know you can get the shifter re-built.
Remember don't use it to hold your drinks. $420 Lew bucks.