Quote
Is there away to tell if it is cable or not? Would hate to take
My dash out if i don't have to


Poke your head under the passenger side of the truck and look at the back of the transfer case. If you see a big fat cable screwed into the side of the case, you have a mechanical speedo/odo:

[Linked Image]

If there is a sensor screwed in there with a couple of wires coming from it, then it is electronic.