I want to order a few parts from DC and Im having trouble figuring out which ones I need.

1966 F100 CC 352/3spd.

I need a speedo cable and gear.

Clips to mount the side trim on the hood Dc lists one p/n, LMC has 3 p/n's.

 

Just thinking out loud here, but that hood trim tapers from back to front and does use more than one size of clip. Smaller clips toward the front and bigger toward the cowl. I'm not in front of a set, but I'd bet there could be three different sizes on that one piece of trim.