4 Wheel Drive/SUVs: 2002 Chevy Suburban 4wd, clutch assembly, chevy suburban

Question
The transfer case engages from 2HI to 4HI to 4LO and the front differential actuator is working. Why doesn't the 4wd work?

Answer
Rick,

Some of the Chevy transfer cases used a clutch assembly to drive the front differential.  If this is the type of transfer case you have, there are a few things that can affect this.
They are, bad or worn clutches, low or burned transfer case fluid, wrong or low/bad differential oil.

Carl