Air Shut-off Valve, Actuator - Seeking education.

[71CHEVYSHORTBED402]

71 C-10 with A/C. Please bear it if you can......(learning phase).


1. What's this door flap called? (see first image). The assembly manual reads "PROD VALVE ASM", but.........

2. The door flap sits on the passenger side against the (fill in the blank) (foot board)?

3. Back to the door flap. The door has two fittings with a hole in each (see 1st image). Again, don't know what these are called. Nothing was attached to these and I see nothing attached to them per the assembly manual. What are these for?

4. Safe to assume the fender must be removed to remove the door flap? Okay, that wasn't so bright.

5. The link for the actuator to the bracket mounted on the door flap has two push nuts. Happen to know what size?

6. I jumped the gun, but believe the spring is connected correctly for the actuator to bracket (2nd image). Can you confirm? Probably one of those areas if it fits it works.

I'm putting this stuff away for a while and taking good notes, a guide really. I write procedures/systems specs for a living, and when done, this will be very useful, especially for the novice like myself. Correct labels, etc......it's all in the details. Thank you.