I'll take a pic of the "bolt" style when I get home and measure the hole pattern. The "bolt style" is about twice the length of the one that 3_puppies shows. Take a look at the bolt holes in the truck and see what you need. Here's my 78 (pardon the dog fur...)
Anyone got the measurement on the bolt pattern?
Judging from the two pictures I think I might need the bolt. I have no bolt hole to attach that cable clamp (Ming89fj62), but I do have a cable clamp that looks like what 71greenpig has.