Surely you have some type of underbed mounting bracket still in place ? Hopefully more will chime in as to typically how most 55's carried their spare. My '50 has a straight running bracket from front to back. This long bracket is riveted to a cross brace.

I would think though by carefully looking under the bed, there must be signs of how your spare was originally attached. No ?


Craig

My '50 Chevy 3100 5 window, '62-235cu, 3:55 rear
My truck ....... Respect The Rust
If I'm not working on my truck, '65 m00stang or VW camper, I'm fishing with the wife or smoking Salmon.