cable is probably bad itself have you tried replacing the throttle cable?

 

I would guess cable also but you can test to see where the issue is.
Disconnect the cable from carb & pedal.
Move pedal if hard that's the issue.
Move the cable if hard that's the isdue.
​​​​​​Move the carb throttle if hard that's the issue.
Dave - - - -

 

I can guarantee one thing; Ford did not sell trucks with hard sticky accelerator pedals. When these trucks were sold new, they drove tight and straight down the road, they started right up in cold weather, they gave confidence when stopping, etc. Anything else is just a symptom of something failing and needing repair. Sometimes it's just a little wd40 in the right places, other times it's more serious and lots of money. Just pretend you are buying your truck off the lot, and say to yourself "would I put up with that?". Some people dismiss things because "it's a old truck, they all did that" but I do not think they would have sold many of them with some of the aggravating things people put up with.

 

 

 

Thanks for posting back what you found/fixed maybe your buddy's is the same LOL
Dave ----