i have a 99 k2500 that i ordered new and want to swap in some rear discs. i saw this article http://www.pirate4x4.com/forum/showthread.php?t=985215 and was wondering if anyone has swapped over a set up from a 2000 silverado 2500 or the 01 - 05 1500 hd silverados since they have c-clip axles like mine. any info will help. thanks, paul c.