After re-doing my truck's floor i realized that the rear wheel wells of our K5's have HUGE open holes that lead to area's of rot due to salt build up, mud build up, basically anything that gets thrown off the wheels will either end up in the corner of the front cab or caked in the tailpan section of our trucks. Before i did any wheeling with it or any snow came along i wanted to make an inner wheel well flap. I was trying to find large sheets of durable rubber to cut up and use. One day i was at Sam's club and i saw one of those plastic/rubber computer chair mats you use under the chairs on carpets. So i picked it up, its pretty darn thick, and only 10bucks for about 3sq feet of it!
I brought it home, made some cardboard mock up pieces to fit in my wheel wells and then cut the same shape out of the clear rubber/plastic mat. After cutting it to the shape i wanted to, i then took undercoating and coated both sides of it. I let it dry, drilled a few bolt holes and bam i got myself some serious mud/salt protection for my floors. The rear one i ended up curving from the wheel well and all the way back to the bumper so it minimizes junk getting stuffed into my tailpan. they work great so far! Its definitly something i would recommend doing.
Here is a picture of the front section, sry for the quality kinda hard to see them as well cuz of the salt on them!
Here is the back section
I brought it home, made some cardboard mock up pieces to fit in my wheel wells and then cut the same shape out of the clear rubber/plastic mat. After cutting it to the shape i wanted to, i then took undercoating and coated both sides of it. I let it dry, drilled a few bolt holes and bam i got myself some serious mud/salt protection for my floors. The rear one i ended up curving from the wheel well and all the way back to the bumper so it minimizes junk getting stuffed into my tailpan. they work great so far! Its definitly something i would recommend doing.
Here is a picture of the front section, sry for the quality kinda hard to see them as well cuz of the salt on them!
Here is the back section

