Here is the on going search, Dealership is checking to see if new 6 spd trans out of an 06 will bolt up. And what changes need to be made. I have checked with Eaton Fuller, they also produce a 6 spd with similar ratio's that I know will bolt up to the back of the Cummins in Medium duty trucks. Then comes the trick is to bolt the transfer case up to the back of Fuller. I talked to advanced adapters to see if they have done anything yet as well, but as of yet nothing for the 5600. Advanced adapters does make adapters for the 4500 from the Getrag. I do not have the ratio's for the D. C. 2006 mercedes 6spd but do have the ratio's for the 1st generation NV5600 with 1. 25" input shaft.
1st---5. 63
2nd---3. 38
3rd---2. 04
4th---1. 39
5th---1. 0
6th---0. 73
REV---5. 63
Back with more news soon
Kirk