replacing thermostat on 1996 suburban 1500

I dont have one but I think if you follow the upper radiator hose to where it meets the intake, you should find it.

should be easy, may have to move throttle linkage out of the way, as said follow the upper radiator hose up Around AC compressor, behind it and then end up in front of the throttle body on the intake. 2 bolts, remove housing, swap thermostat, Use NEW gasket, tighten bolts snug (dosnt take much to break housing).