Oh I like these! And I have an 07 with the 78" (6 1/2") bed.
Means I can go wider on the tires next time too without worrying about slinging shit all over the place. Currently have factory 18"s with 265/65-R18 wrapped on them. Would like to take them to 275/60 if the wheel width allows it.
I'll check the floors and cab mounts. Last time I looked they were still pretty good. Might be time to replace some worn/aged bushings but that's about it. She's help up quite well.
Two questions. One, where did you the painted one shot at? I'm going to grab a photo of the black ones and see if I can't photoshop them to match my truck, then see how they'd look, or if I should leave them black.
Second, more of a mechanical, but I suspect this is right up your alley. Rear diff cover bolts. The bolts on the bottom half are rusted into a molten mess, the top look new. The fill plug comes out no problem. Suggestions on getting those bottom bolts out? As soon as you through a 6pt or 12pt socket on them it just twists the heads into even more of mess. Currently has about 40,000 miles since last change with minimal towing, like hardly any. So have some time before it becomes a big concern.