LS OEM Accessory Drive Questions

[Modges'66]

I am under the impression that GM makes 3 different offset accessory drive set-ups for the LS engine.
A short set-up (close to the engine) for Corvette/Cadillac CTS-V, a mid set-up if you will (3/4" increased distance from engine) for F-Body & GTO, and a long Set-up (1.5" increased distance from engine) for the trucks.

My questions are:
Which offset set-up does the Caprice use?
Which offset set-up does the Trailblazer SS use?

I am trying to determine if the Caprice or GTO uses the same accessory drive set-up as the Trailblazer SS, as they both have a A/C bracket that incorporates both an idler pulley and a tensioner pulley, where the TBSS only has a tensioner pulley.

I constantly throw the A/C belt on my TBSS during hard 1-2 shifts, and have read that this is why GM added the idler pulley to the newer A/C brackets.
the GM part No. to the newer improved bracket for the Caprice that I am referring to is #92252927.
I have no idea what the bracket part# for the GTO is...

Any insight on this issue would be greatly appreciated!