No to AUTOTRACK II, its for in the auto transfer case, the one with the big AUTO button on the 4x4 selector panel. Your year calls for a Dexron III ATF. Its important to note that while Dexron VI is backward compatible in all GM automatic transmissions, the same it not true for manual transmission and transfer cases.

This information applies to 2007 and prior GM passenger cars and trucks.

Dexron III is being phased out as a product name. It is being renamed Manual Transmission Fluid and carries p/n 88861800 U.S. (88861801 Canada).

If fluid p/n 88861800 U.S. (88861801 Canada) is not yet available when servicing a manual transmission or transfer case, Dexron III can be used in its place.

The following diagnosis might be helpful if the vehicle exhibits the symptom(s) described in this PI.

Condition/Concern:
Unavailability of manual transmission fluid part number 88861800 U.S. (88861801 Canada).

Recommendation/Instructions:
If fluid part number 88861800 U.S. (88861801 Canada) is unavailable when servicing a manual transmission or transfer case, Dexron III can be used in it's place. DO NOT use Dexron VI in place of the manual transmission fluid in any manual transmissions or transfer cases as a failure may result.

Please follow this diagnostic or repair process thoroughly and complete each step. If the condition exhibited is resolved without completing every step, the remaining steps do not need to be performed.

 

So I can use Valvoline Dexron VI Automatic Transmission Fluid

 

Use a Dexron III to be safe.

This what GM recommends and from the info I posted above you know its really Dexron III renamed.