The transfer case only uses a GM specified lubricant. You can get it for around $6.50 a quart and will take 2 quarts. Don't use anything but this. It called Auto-trak II
Dexron III Automatic Transmission Fluid
location for 2003 chevy trailblazer coolant temperature sensor
Where is the input aux for a 2003 trailblazer
how do you set the clock on a 2003 chevrolet trailblazer
How do I reset the service engine light on a 2003 Chevy Trailblazer?
Where is the neutral safety switch on a 2003 trailblazer?
need help changing the belts on my Chevy trailblazer lt 2003
Specs for main bearings on a 2003 Chevy trailblazer with 4.2 engine .
No
A eaton fuller 18 speed roadranger gearbox is used
try this website --->www.trailvoy.com<--- they have alot of stuff to help you with your trailblazer i should know im a member my self i have a 2003 Chevy trailblazer Lt www.trailvoy.com
small leak at the cooler lines and now you are down about oen quart of trany fluid