So I'm going shopping
 

Wednesday I'm going to look and test drive an 07 lbz in Carrolton Georgia. I've never owned a diesel and it's been 10 years since I've purchased a vehicle. I don't tow much more than my 12foot lawn care trailer, but I've always want a diesel and have always liked this body style. I didn't really need a vehicle but started looking and layed out some things one would have to have to consider it, for example after doing so reading I wanted the lbz, leather, four doors, sun roof, either black or white. Its had 2 owners and the asking price is 23000.

Now the main reason for this post it has 167k miles, the ad doesn't list any aftermarket tuners etc but it appears to have an aftermarket gauge for the turbo. Even thing else without laying eyes on it looks good. I know there is no sure fire way to not get a lemon but I'm driving 2 hours to check this truck out, what advice can y'all give when checking this truck to make sure its right.