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Good information Bowdown. I'll start the measuring process. The internet searches did not help with this at all.If you are interested in how to bypass the ac, this is how I did it.
Removed the ac compressor and measured the route I figured would best give me clearance and still hit all the vital pulleys. This measured out to 83 inches, which is not a common size for 7 rib belts .
NAPA has one that is 82.75 inches. The part number for this is 070822.
The routing of the belt is basically the same, except you don't use the idler pulley that is below the alternator. Also, of course, the ac pulley.
The fit was almost perfect. Had to lift a little higher on the tensioner to get it over the alternator, but it snugged right up.
I left the steel plate that attaches to the studs, under the ac, off for clearance purposes.
2005 5.7 ac bypass belt
www.ramforumz.com
Also try unplugging the compressor wiring harness and see if that deenergizes and frees up the clutch
