Thanks for that recommendation. I'm thinking of the cost and the benefits of the 4L80e ( reducing RPM 500 TO 1000, great shift pattern, anyone can rebuild) , seems trans shop can do a good rebuild around $2k $650 for that control you recommended.. Vs $3k for GV ( only reducing 400 RPM, every 3k...
Researching swapping th400 with a 4L80e (rather than GV) lead me here, seems like a great deal of knowledge here. It's an 83' G30 Winnebago guadra-bog w/5k on rebuilt 350, thinking a late 90's 4L80e (w/the aft cooler line)and an aftermarket shift module. As it's a Camper and want to have fun...