I have a 69 convertible that I had to replace the firewall with a reproduction. The new part doesn't have the wire loom hanger studs on it though I'm told that I can just use nails and weld them on from the back. My question is what size nails do I use? I thought I kept a sample of this section of the firewall when we moved but now I can't find it. As an alternative to the nail size, does anyone have the size of the stud base as well as the head?
Thanks for all the advice.