96 12v Cummins nv4500 swap problem need help
 

Hello everyone. I just got done installing and replacing my stock shitty 47re with the nv4500. after wiring everything up and getting everything to work and taking for test drive I have found that the speedometer does not work. Further research as led me to finding there is no speedo connector on my new transfer case but there is one on my rear diff. So the question is how do I connect these to make these work Because I know someone on here has done it before and would just life some information please.

the rear diff is not a Vehicle Speed Sensor (VSS ) .. there is typicall on in the T-case or @ back of trans .. :humm:

post 96 they used a VSS on the diff, with a one piece case on the back half of the T-case. the 2wd trucks always had the speedo on the tailhousing of the transmission. This was the same year that the transmission itself was updated (different top cover with a bolted shift tower rather than spring loaded) and that the engine power was bumped to 180 in the autos and 215 in the manuals as I recall.

Re; topic:
So, so you HAVE the speedo installed in your T case and it isn't working, or there is no hole in the output housing for your speedo to go into?

those are two very different, potential problems.

Having the same issue i swapped my 98 12 valve 47 re to a 99 24 valve nv4500 it does not have a connector on the rear tail housing but i have the VSS in the rear differential of my truck but i have no speedo after the swap. i didnt change out my wiring harness from the auto to manual. do i need to re-wire a connector coming from the auto trans for the speedo or what?