Bring Back the 24hr!!!
Join Date: Feb 2001
Location: Ford - No Victories!
Also there is the parity reason for using the live axle setup, I forgot to mention that above.
As for bodyshells, I am pretty sure the teams get their shells from Beehag(sp?) who take the body pressings from the factory and assemble them with a basic rollcage then pass them onto the teams who then add to them as thy see fit, they can do what they can to strip more weight out of them, but that process is initially undergone when the chassis is first put together at beehag. Holden have a similar arrangement with dencar to build the shells for their teams, or at least they used to, not sure if they still do or not.