I have never seen the straps on an aluminum also. I guess that will be my first welding project is to make a cover. I am using 3/8 grade 8 bolt with 1 1/2 washer. Do you think I need more. Thank you for your help.

I have a 55 chevy that I am putting in a 15gal summit aluminum cell in the trunk on the floor. I have a hole with only the sump sticking out. I have an nhra book and does not help much. The cell looks like an rci cell with tabs but summit is calling them locating tabs look to be about 1/8 inch but I...