What is the thread size of your tie rod ends ?
I was going to lower the rack on my 72. Couldn't find the heim joint ends that would work. Think mine is 1/2" (been a while since I measured them).
I have all the other parts.....and will not be using them - new.
Biggest reason why - the Milodon 8 qt. pan would be low enough to tap the pavement & other nasty things : ie: lowest point on the front.
My 72 has different drivers side mount for the rack.
If your rack has been lowered, without bump steer correction, it will be dangerous to drive. Or so I've read.