Years ago the pedal assembly from my roadrunner went missing and I substituted a pedal from an 80 pickup. Works fine but doesn't look stock. Recently I got a correct pedal to mount to the floor but I'm missing the firewall parts.

I noticed my 77 Dodge truck had a similar setup and wondering if I can use the firewall components from a 70's truck to make a complete setup for the roadrunner?

A local wrecker has several 70's trucks to grab parts from and much easier and cheaper to find than actual 60's b body stuff.

The correct stuff should be easy to find. I may have one out. Not an expensive part I would think.