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OK, so I checked and rechecked pretty much every connection between the battery and fuse box. Nothing was adding up as everything seemed fine until I actually try to start the thing. Talked to my mechanic, he said "I bet it's still the anti-theft system. Take it to Chevy" Towed it to the Chevy dealership. Yup, just needed to reset the anti-theft system. 195 bucks. I asked them why the reset procedure I did at home didn't work. They basically said "Who knows? For some people it works, for some it doesn't." Wonderful.

Hi all, Anyone with a 2007-2013 GMT800 1500 Silverado, in inches, I need: Width of headlight (inside to outside) Distance from headlight to headlight (inside to inside, from the bottom of the headlight where it meets the bumper) The top of the middle section of the bumper is a flat 'shelf' that goes from headlight to headlight. How deep is that from top to bottom (not front to back). Basically the top of the bumper 'shelf' to the bottom of the headlights. Thanks a lot!!

Possible. I'll check it out. There was no sign of that before swapping out the switch and cylinder, though. So it would be a hell of a coincidence.

2008 2500HD 6.0 Swapped out the switch and cylinder. Truck wouldn't start and had the "Theft Deterrent Service" message on. Went through the relearn process: 10 minutes ON (when message goes away) 5 seconds OFF Repeat 2 more times So I turn it to ACC and I can see the Theft Deterrent message and light are gone. Great. Go start it..... everything dies. There's a tiny, brief turn from the starter, but the everything dies, no gauges or anything. Doesn't matter what position I put the key in. If I wiggle the battery wire, it turns back on, but then does the same thing if I try to start it. It's basically acting like the battery is totally dead. Measured it with a multimeter, 11.5 volts. So now I have it sitting on a charger. If that doesn't do it, what else could it be??

Hi all, So I'm well versed in the differences between the 1500 and 2500. I also understand the differences between the 07-10 2500 and the 11-13 2500. I have a 2008 2500HD (pictured). Most aftermarket winch bumpers are massive and heavy and don't really offer better approach angle, which I want because I actually go wheeling with my truck. Notable: I installed a hidden winch plate that was made for 1500s "only." I just had to fab up a couple spacers because the frame is a hair wider, but the holes lined up. I have a write up over at expedition portal. So I'm looking at this bumper: https://www.roughcountry.com/gm-diy-bumper-10790c.html I feel like it COULD work, especially since it's DIY. I feel like the actual brackets that bolt onto the frame horns will be easy to manipulate. But my main concern is the contour. As you can see, the bumper follows the shape of the bottom of the grille and headlights. As far as that area, are the dimensions the same between the 1500 and 2500? If not, by how much are they off? I've read the pre-'11 2500 grille is possibly taller, but is it wider too? If no one knows the answer, if you could measure the length from the inside of headlight, from light to light, that would probably answer my question.