Correct Fleet Runner Belt for 2006 Tahoe?

[2006Tahoe2WD]

Hello again,

I figure it is time to change the AC and acc. belts.

I want to use the Gates Fleet Runner model for both belts. They are supposed to last longer.

Vehicle is 2006 Tahoe 5.3L non-Flex fuel with 105A alt.

It seems pretty easy to find the correct belt for the AC drive. K040378HD

However, for the other longer belt I'm getting mixed signals for the correct model/length.

The two that are showing up:
K060923HD (outside length 92.9")
K060930HD (outside length 93.58")

Any help on this appreciated. Thanks.

 

[SnowDrifter]

105a alt would be the shorter belt. You sure that's the one you have though? I was under the impression that efans began in 05, and came with a larger alternator to supply the current