hi folks. finally got in! got my tranny rebuilt for a 98.5 24v 4x4 quad. shop says there is a shift problem that makes the truck think that its in 4x4 but its in 4x2. had a diesal rated tc. xtra cluthes and shift package installed. something about the control sig or pcm program that is giving it grief. a prior truck is doing the same thing. these guys have been doing these builds a while and never seen this before. any HELP out there?