2nd Gen. Camaro Subframe - What Year Do I have?

[Roger Edwards]

I need some help determining which 2nd gen. Camaro subframe I have in my 1957 Chevy truck. I am looking to order some parts from DSE and there are 3 options for the parts (70-72, 73-74, & 75-81). Are there any differences I can look for on the subframe to determine which one I have? Any help is appreciated.