Hey y\'all!! Answer me a question about these new Chevy diesels I was hanging with my poser wheelin buddy the last two days, and he has the Chevy 3/4 extended cab diesel all lifted and looking nice. First, someone needs to hijack that frame and mate it to a K5 body. Anyway, onto my question. I was looking at the rearend, what a big, beefy looking thing. Anyway, on the inside of the spring pads, there's another spring pad looking thing on the axle tube. Anyone know what the heck that is???????????