Wow guys I never expected so many responses so quickly, I really appreciate the time and effort each of you has contributed.
I will definitely check out the sites that you mentioned for the parts and in relation to the hubs i'll use the old adage if it ain't broken don't fix it, it runs great now so i'll leave them and it'll save me money as well.
As to the chasis number I got this off the plate in my vehicle but my old man works for the dept of transport in WA and he did mention that the army may have grabed a whole lot of plates and just fitted them to the vehicles and mine didn't actually match the number on the chasis.
This is what I have but if i find that it is different i'll let you know
Truck Command Recon
Chassis 143900525
Contract no C104337
Date 16-12-58
Thanks again, and now i'll try and serach for the chasis number :)

