1042367
I replaced mine with the breather cap from a full sized oil drum. If you look at the oil drum, there is a large cap and a small cap that both screw off. I took the small caps off the oil drums, cut out the part from the drum that it threads into, reinforced it (just made the sheetmetal a little thicker) and cut out the floor of my jeep large enough to weld these in. Now I can just uncrew the the caps to drain my floor. Make sure if you do this, keep the rubber seals for the caps. There's probably an easier way to replace the plugs but here's an idea that works.[addsig]