tjkj2002 wrote:
Well the t-case is shifted by a cable so the cable might be siezed internally.Select-tracs have a known problem with shifting and not totally disengaging out of 4wd also.Check the fluild cause low,bad fliud,and the wrong fluid(should be ATF+4 only) can cause shifting problems in the select-trac also.
If you can pull the center console off and pull back the rubber boot on the t-case cable and spray the heck out of the cable(and hopefully get some into the tube itself) with WD40 it may break free.
I was mistaken when I said the last itme I engaged the 4wd was early summer. I had used it driving through the mud from a campground while towing my tent trailer this past August. Had no problems then. Just changed the fluid this past summer with Amsoil ATF. Should be ok. I'm baffled!