what are people talking about they are slow to shift? if you double clutch and all that garbage they are. i drive a truck and can rage the gears pretty good, on wet pavement once i shifted 6 gears while spinning. 1 set of tires anyway

 

The ISC(8.3L) is the same block as the ISB(5.9L) and eaton fuller makes a 6 speed that they put behind the med duty stuff that is tuff as nails

 

Hey bud if you get it to work i would love to see some pics. Ever since I rebuilt my first one of those things I have been wanting to put one in my rig, I figured it would be a good way to top off my mini big rig type setup i have going on

 

i would but i dont have the $$ to do it.

 

its going to happen just not sure how soon

 

There was a guy on the TDR a couple of years ago that went by the handle "C series man" or something like that. He had an older body style Ford that he put a 8.3L and a 10 speed in. He had a lengthy write up on it and lots of pictures of his fab work to beef'n up the frame. When it was done, he got good mileage and had loads of torque.

I've heard of a few people putting 10 speeds in Dodges before, but haven't seen one.

Dan

 

After looking at the catalog listed on post 16, it does look like that is a good option. The gears aren't much different between the nv5600 and an eaton six speed but the bigger setups just add more gears down low. I didn't really get into it, but the weight/size didn't seem too radically different from the nv5600 either.

 

Here is a link:

http://turbodieselregister.com/forum...-finished.html

Dan

 

Best option I've found for something like this is an Eaton Fuller FSO-8406A, its a medium duty 6 speed with synchronized gears. Rated for 860 foot pounds of torque, has provisions for a PTO and weighs in at 359 pounds. From what I've found so far they can be had for around $3000 + $1000 core charge, and I think an SAE#3 housing is used to bolt up to our cummins engines.
Seems like the best option to me, it what I'm planing for when my auto gives out.

 

i have a buddy that drives truck and has a eaton fuller 13 speed and he runs 65mph in 9th gear i hopeing to have more gear for the highway rather than down low

 

the pics would not open but it sounds like a nice job i wonder why he sold it sure seems like alot of work

 

anyone know what the overdrive ration is on a nv4500,5600
or what the od ratio on a eaton 10 speed or 13speed

 

From another post:

 

4500 is .74 and the 5600 is .73 i believe

 

the super 13 is .79 an .86 i belive
seems like a big diffrence from the nv5600