When we picked the C30 up it was fitted with front axle from another two wheel drive truck which was done at times to save fuel by reducing the weight of the vehicle. We have fitted a front diff from another chev, but I doubt if we will ever find a cab 11 diff.
Col we should buy Dave one of those Aussie survival packs for his long journey to Yass to eat the sponge cakes. Mind you fresh sponge cakes don't last long with me around here, so he'd have to be quick.
Max