Gordon Nichols posted:
Then, I have another shield on top of the rear portion of the frame rail that seals that area between the rail and the rear inside of the body. That piece has a kip-up at each end to seal just beyond the tail lights. The two, together, are pretty effective.
Yes Gordon, I forgot to mention that one! It is important because it sits just above the muffler on a conventional style exhaust system and blocks a lot of heat.