The original owner of my 1957 Oldsmobile installed the factory battery box in front of the radiator. I've never liked that spot as it makes it very hard to swap batteries as the front brace has to be removed. I have since removed the battery box and I'm trying to install it in the factory location but need to know where the mounting points are on the inner fender and the radiator support. If anyone has any pictures please let me know. Below is what I'm referencing. Thanks.

 

I did some more checking and it looks like it might mount to the inner fender by these 2 back bolts (see picture) and 2 front bolts onto the radiator support (see picture). Let me know if this looks right. I've looked at pictures online but it's hard to tell. Thanks.

 

Here is mine. 8 bolts total. 5 bolts in the wheel well opening, 2 bolts at the very front, and 1 bolt at the core support.

 

Wow, way more bolts than I thought. This is very helpful. Thank you so much.