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What makes wheel alignment difficult as compared to modern cars/trucks is that in order to adjust wheel camber, you have to bend the I-beams. Considering the primitive tools used to do it, it's really pretty simple. Considering the methods though, most home shops wouldn't be able to do it. Heck, most wheel alignment shops can't do it.
Waaaaaaaaaay back in about 2011-2012, a fellow slick owner in GA posted on the H.A.M.B. about having his truck lowered/aligned by G&S Auto Muffler in Marietta, GA. Not sure how far that is from you, as your profile only lists the state your in,......but if the distance is tolerable might be worth checking to see if they're still around.
Alternatively, look for a shop closer to home that's been around forever, and has the required equipment to bend the beams.
How hard would it be to align the front wheels yourself on a 66 F100?
The only thing you could do yourself is set the toe. If you take it to an alignment shop all they will likely be able to do is set the toe. But they can tell you what the caster and camber is and unless your truck has been wrecked pretty bad or everything is worn completely out the caster and camber are most likely going to be fine.
If you go to a shop print this and take it with you because 99% of the tech's have never seen a twin I beam suspension. Also make some blocks to take because it's guaranteed they won't have any. Front Wheel Alignment Specifications - FORDification.com
In all of the 34+ years I've owned Ford trucks, I have yet to have to have the I-beams bent to align one, new king pins, bearings, tie rods, shocks,, all I've ever done was toe-in/out and have never had an issue, now once you raise or lower the front end... different story.
It's fairly simple to do, it's math, measure exactly 1/2 way up your tires, mark front and rear, measure width, frt/rr and mark, measure distance between marks frt and rr, if my memory serves me correctly, I believe it's 1/8".
The only old Ford I have taken for an alignment was my 77 F150 4x4 SB after I changed the front springs and C-bushings, and it was spot on, the guy felt bad charging me for checking it.
Best bet is to find a shop that works on larger trucks and go from there. Luckily for me there's a couple of old school shops around here that can still do things the right way. After I rebuilt my front end I took it for an alignment. They most certainly needed to bend the beams. I am currently doing the '75 front end swap and will be heading back to same place again when done. I agree that it takes a lot to throw things out of whack but in 50+ yrs we really have no clue what these trucks have been put thru.
When I bought my truck it drove pretty straight, but everything was worn out so I rebuilt the front end; springs, kings, shocks, and bushings, and it drove like a dog turd.
I went to nearly every alignment shop in San Diego and got no help but a toe set and a confirmation that my caster was way out, and my ride height was proper. Finally found a guy at a specialty shop that spoke Ford. He gave me about ( degrees of caster, got the camber in, and set the toe. It was VERY expensive, but I can go down the highway at 90 with no hands. Worth every penny.
Just for reference my truck got 1979 I beams, spindles and radius arms with all new kingpins and bushings. For $43 at the shop they set the toe and centered the steering wheel loosened and retorqued the I beam pivot bolts at ride height. Without bending anything it was, caster 4.17 left, 4.10 right, camber .88 left, .48 right, well within Fords specs. I had them set the toe at 1/16 because of the radial tires instead of the original bias type. If you run radial tires you will have to play with the tire pressure to get it to track. The original tire pressure recommendations don't play well with radials.
Last edited by Crop Duster; Dec 31, 2020 at 08:59 AM.
Reason: Fixed bad typing
FWIW, some new cars have no way of adjusting camber or caster. The camber and caster on my wife's 2005 volkswagen (per the shop manual) can only be adjusted by shifting the subframe. Obviously, this moves both front tires at the same time. For her car I just adjust the toe and monitor tire wear.