Don't have same tranny but good luck on a simple fix.
Gonna watch this thread close. I have an '86, 6.9, w/Banks Sidewinder installed before I bought it. Lately, tran wants to grind a bit going into 4th.
Dumb question. Does rear fuel tank actually have a pickup, because mine has never worked. I just run it until it flutters, then switch to Front. Yeah, I know.
The "showerhead" pickup usually breaks off, leaving about 1/4 tank of the fuel unsuable.
I run mine until it acts up too lol