If the dealer you're looking to buy it from doesn't give you the service records.. it may be a sign you might want to pass on this one and wait for the right truck to come back around again.
I was watching a review today and the new GM trucks have the 4x4 knob and lights side by side, and they look exactly the same with just a different facing on it. That will be a huge problem for people moving forward with the GMs.
GM doesn't have a half-ton diesel.. which is why they lost customers to the Ram EcoDiesel.
With the diesel option coming out in the Canyon and Colorado, I'm still not sure many would step down to a midsize truck for about the same price you can get a ecodiesel for.
Recon has a 50/50 reputation for their lights. A lot of folks say they leak, others say they love them..
If you go the recon route, I would recommend putting a bead of silicone around the gasket to be safe.
I personally light the strips better than the singles, but that's just me.. your...