67-70 pedal to carb linkage rods?

[Aarons72s]

I got 2 67-70 pedal to carb linkage rods and have forgoten which each is for. All I rember is they were 2 wheel drive and 1/2 ton. I figured that each could have been 1 of 3. As they came off of some trucks I scrapped several years ago. One I scrapped was a 250 I6, one was sb 2 barrel carb and 1 was sb 4bl quadrajet carb. Im planning on selling eventually, not for sale right now- will be sold in classifieds section, but need to be sure what each is for. Thanks Again.