Sorry, pressed the wrong button on my confuser,some scrap iron,baking soda,water and a battery charger and you'll throw rocks at all the other stuff.
There are some good threads on here that explain the process in greater detail.
I derusted the doors and fenders on my 49 half ton.
Pull the large parts out and take a high pressure washer to them
The smaller pts.use a plastic or pts.cleaning brush.
It takes a little time to gather up all the stuff but you won't regret it,I havn't used my tank in sub zero conditions but if current is flowing the water probably won't freeze.
I'll leave that one up to you wire heads guys. PK.
