This occurred to me today while working on my chassis rot
Land Rover chassis rot from the inside out. They rot because carp gets into the chassis via the numerous drain holes Land Rover drill into them.. They also have drain holes so that when offroading, the carp that gets in can get out; which is mostly doesn't.
So weld up the drain holes, and every other point of ingress and you'd never have to worry about a chassis rotting from the inside out, but the easier to deal with outside in.
Or am I missing something obvious.
