I'd be remiss not to mention this excellent post from 2014:
https://www.fordbarn.com/forum/showp...3&postcount=16
Measuring your toe-in is one thing, but then how do you know how much to rotate the tie rod? This post gives the exact math to calculate it. I used it last weekend when I did my toe-in and the results came out perfectly.
For the record, I measured toe-in by jacking up the front end, marking horizontally across each tire with chalk, and then measuring the distance for that point at a consistent height in the front and the back. To improve accuracy, I measured the distance between 3 points at the edges of the tread grooves on each tire and then averaged the results.