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Looking to see if any techies out there know where the VSS wire, plug and pin are that run to the ECM and/or BCM on a 2007 GMT900, 5.3L 4L60E...

Reason being is I bought a speed calibrator and have it all wired except for the most important part, the VSS wire. My Bully Dog 3GT corrects for wheel/tire/gear size but the ECM doesn't recognize any gear ratio past 4.10, and I converted from stock 3.73 to 4.56/33"tires. Also there are schematics out for the 07 Classic trucks but I did some hunting and they are not wired the same as the newer body style trucks.

Any help is greatly appreciated!
 
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