Ok, just making sure you weren't sitting in the front yard, flooring the pedal and complaining because you couldn't see grass flying from the front tires.
The shift forks are inside the transfer case.
Unlock the front hubs. With the parking brake set, tcase in 2wd and the truck in park. Crawl underneath and twist the front drive shaft. It should spin without any noises or weird sounds from inside the case. Have a helper put it in 4wd hi. Try spinning the shaft. It should not spin at all. From your description, it will probably spin like the truck was still in 2wd.
If that is the case, have your helper slowly move the tcase shifter around front to back real slow while you twist the shaft. Hopefully, just a little forward of 4hi on the marker is where it will lock in. If that is the case, try adjusting the linkage so it locks in when the shifter is in the 4hi slot. Then try all the other positions and make sure they work.
If there is not enough adjustment or it doesn't work properly in the other 3 positions. That means your shift forks inside the tcase are worn beyond spec and need to be replaced. Time to start thinking rebuild or replacement.
Just a wild thought. Check your tcase/transmission mount and make sure it isn't broken. That thing flopping around could mess up the linkage doing its job too.
. I did notice that the transfer case shifter wasn't lining up with the markings so I adjusted the linkage as suggested. Problem solved. Transfer case properly engages in 4 H/L. Thanks for all your help. Henry
