The Jeep TJ (1997-2006) frames are known to rust/rot from the inside out. This is widely attributed to the boxed frame with large holes (used at assembly) that let debris into the frame but no holes to let moisture out. Although with the design of the JK (2007-2017), Jeep added drain holes in the lowest parts of the frame, they also made the holes directly behind each tire, larger than the previous Jeeps. Entrance holes measure 1.5" next to each tire while exit holes measure .75". By locating large holes near the tires, the JK frame is extremely vulnerable to large solids entering the frame. Once in the frame, soft solids turn to hard solids clogging any drain holes that do exist. This leaves the inside of the frame permanently coated with mud, salt, sand, or any moisture trapping debris. Frame Plugs work to keep the inside of your frame clean in the same way that the inner fender works to keep the engine bay clean! blackforktool.com

 

Are you a vendor? There's a link for that sort of thing and a small application to fill out.

As far as plugging the holes- yeah, gonna have to say no. I'd rather air get in there and dry them out instead of moisture sitting inside of them and rotting them from the inside. Check out a set of Rubicon rails from someone in the rust belt. Outside they may look good but the salt and moisture that gets inside cannot get out, so it rots them from the inside out. I have a set and have since pulled the caps to let them dry. I appreciate your thoughts and I'm presenting the flip side of the coin.

 

That was very thinly veiled spam. The first post was the initial indication.

 

Ok, the first pictures I posted were internet images I found when I bought the plugs and a discription from the vendor website. I've since installed the plugs and had some drive time. The below pictures are after crossing a wet, slightly muddy, grassy field.....with total street tires! Note the weed that would be in my frame forever, had I not plugged holes. Weeds, leaves, gravel don't simply wash out or dry out. They collect in weld seams, hardware or any protrusion in the frame interior. The notion that holes in the frame directly behind the tires "dry" the frame out is absolutely obtuse to me! Would you wheel without inner fenders to "dry the engine off"? Why let junk in just to try and wash it out? What happens when you are wheeling in 4-low all weekend with little to no air flow? I've done it many times and the mud turns to brick by Saturday, only to collect more on Sunday. I only wish someone would have brought something like this to market when I was wheeling my TJ :(

 

Still looks and sounds like an infomercial.