I'm needing a Switch Commutateur Interruptor, and I need to know what used for? on 2004 Chevrolet Trailblazer

I have a Chevy Trailblazer its a 4 wheel drive, the shaft front differential has a lot of play what would cause this? Also, the inside panel for the 2HI,2LO,4HI,4LO switch fluctuates on its own causing problems.

Asked by for the 2004 Chevrolet Trailblazer
Just call it a switch! What do you need a switch for,the 4x4 selector? How do you know it is defective?
Had it scanned?
1 more answer
The switch commutateur interruptor interrupts the switch commutateur.