13 Speed: Probably a stupid question, but...

Yup, entirely possible; I am a truck driver not a english major.

Definitely seen that before.

 

Wait! let's work on the duplex first, THEN the triplex and then the 5 and 4! Woo Hoooo. Who want an automatic???

 

What's the download URL?

 

Yeah, and a Doug Nash 5 speed is the same as a Muncie 4 speed with an extra gear.

 

Go to the literature center on Eaton's site, select a tranny on the drop down on the right.

 

I drove that....I liked the 6 to 8 shift as it was synchronized so you could start out on the road with a heavy load to get rolling and then shift into high gear.