Transfer case question

[94GMCK1500]

I'm looking for a diagram that would show me the location of this part ( Dorman 4WD Switch - 600-502)...Truck is a 94 GMC w/ 5.7 liter...

 

[GoToGuy]

How about what does it do? Or what are you doing? Nobody has Dorman numbers memorized. But we systems and operations. We fix problems. What do you need help with?
Start with , Year, make, model, eng or trans if applicable.