My neighbor was a Chevy dealer parts man for over 20 years. He had some interesting items.
This is how he figured out what to order to get an NOS aux battery box: 3 pcs, separately. They can be held together (I added stainless bolts) with bolts or welded, if you like.
These are clean, no rust, no thin spots, and no pitting from acid.
I am selling for
$125 shipped.
Hang on, I am on a roll! I have a couple more items. The last one is a BIG one...bring your wallets