Originally Posted by rustfixer
do you mean the 47rh overdrive automatic is all mechanical?? from what I understand they have a locking converter and the overdrive engages electricly also.
I could be wrong, Im new to the diesel world but Ive been poking around a little and thought the tranny needed to be switched electricly to work correctly
I know my friend who is helping me with this swap just completed his swap with a 12v and a nv4500 trans and he didnt need any computer/ electrical stuff because that was all mechanical....but I think the 47rh auto is different.
Ah. I researched this a little. Shifts 1-3 are controlled mechanically, but the torque converter and OD are controlled electronically, for which some people use toggle switches. I get what you're saying now. Im not sure on all that but Im sure someone else is, since I used the NV.