Anyone ever seen one of these? According to the GM Parts books, they came on P-Chassis trucks. I did a GMPartsdirect and partsvoice search, the shoes and some hardware are available, but none of the drums are. I wonder if these could be adapted for our use to get rid of the pesky Caddy E-Brake on our rear-disc converted trucks. So next time your in the boneyard, don't pass by that listing chevy motorhome, go check out it's driveline!