Which Tranny Should I get?

Disclaimer: Links on this page pointing to Amazon, eBay and other sites may include affiliate code. If you click them and make a purchase, we may earn a small commission.

RDF1

I'm Awesome
Joined
Apr 3, 2018
Messages
1,196
Reaction score
996
Location
MS
The 85E is a 80E with a 5 pinion planetary to spread the load out further on the sun gear. So in theory a 85E is stronger than a 80E but you still have the same clutch packs and input/output shafts.
Controlling the 6L90E could be a challenge.
Id try a 80E and see how it does.
I wouldnt run a higher HP tune on engine tho. Detune it slightly and get a feel for how the transmission is going to react.
 
Top