Peculiar Tow Hook-Sq. Body?

[Ironhorse]

Okay, have posted about these tow hooks in the 73-87 forum and got some response but no definitive answer about what trucks they came on. Looking for a WIW response as I will be offering these in the near future on the 73-87 parts forum. I do know they are MUCH heavier than the normally found 81-87 style hooks and do have the heavy body of the 73-80 hooks while retaining the more slender " S " looking style of the 81-87 hooks. Weighing these hooks, the 81-87 normally found hooks are 3 1/2lbs each, these are 4 1/2lbs each. The bolt hole size of these hooks is the same as the 73-80 hooks and same hook body position as the 81-87 hooks but which have a smaller diameter bolt hole . They matched the bumper hole position perfectly on my BIL's 83 one ton K30.

Go to the 73-87 message forum and look for my thread about a 3rd option square body tow hook if want further reading on these.

Now for the question: Looking for thoughts and opinions as to value of a pair of these, bead blasted, two coats primer and two coats Rustoleum Satin Black. Am posting pics of all three styles for reference and to show comparisons.