Thanks for the tip on the fronts. They really need the clip because the supplied double-sided tape was not strong enough to bond with the wheel well. In the rear though, it seems like they fit better and there wasn't much of a gap at the wheel well, so the tape was able to make decent contact. Guess I know what I'm doing tomorrow morning.
Not sure if you did yours let, but super easy even on the Rebel's large 33" tires in the way. When doing the driver's side, turn the wheel all the way to the left first. Remove the first 3 bolts, install the mud guard. Then turn the wheel full right. You will then have plenty of room to get a full size drill for that 4th screw install. I pre-drilled the flap first, which made it really easy to drill through the plastic liner and get that extra screw secured.
Make sure to use a socket driver instead of a socket wrench on the 3 fender screws. The torque required to tighten the bolt is very small, just hand tight until it just stops. Over torquing could mess with the fender trim.
Here is some close ups in case some of people still aren't sure how they will look, at least the front set which is all I installed.....
Good fit, not too much gap (unlike the earlier examples), but not too close that the flap will scratch up the flare, but it comes with protective film for those with painted flares.
Sits about 1" lower than the WT flaps, a bit more protection against debris.
Close up of mounting points. 3 existing screws/washers, and the 4th inside is the optional one. Highly recommend you install that, the 3M tape won't be able to keep it secure. Really easy to install, you won't need to take the wheel off to drill small hole for the screw.
I think it matches up well with the rest of the truck!