I had the 67 Dart lined up last year by an ASE super duper tech. Complant was pulling to the right, wearing inside of front tires, and darting in and out of the ruts on I-95 and other roads. He was unable to bring both sides into spec, and refused to print out before and after adjustments. Claimed he printer was not working. He flooded the engine trying to start it, and had to get it running for him. He said there was a lot of sloop in the steering gear, I agreed. Not impressed at all.
I had set the ride height before arriving, he had to set the the other three adjustments. If I remember correctly he was not able to bring caster into spec on the right side. I said get it to stop wearing tires.
He had a flunky test drive around the building, and they proclaimed the job was done. As I drove off the steering wheel was cocked 3 inches off center, and later in the ruts on I- 95 the car was darting left and right as badly as before.
I made adjustments two time to remove some of the slop from the box which improved rut driving a little bit. I haven't driven the car enough to know if it is still wearing front tires. My suspicion it is toed out, as when changing lanes and crown on two lane road she tend to lurch to the left.
All the front end parts have less than 5000 miles on them except the power steering gear that was rebuilt to firm-feel level by 'Steer and Gear' about 25,000 miles ago. I'm beginning to think they put in new seals and perhaps a bushing or two, but did not address any wear in the recirculating ball mechanism perhaps the reason for the needed adjustment.
Now I have about had it with this front end and steering box. No one can line it up. I installed Q1A upper control arms around 5000 miles ago when up grading to large bolt pattern disk brakes.
My next step is to get a toe adjustment kit and check the toe, also I need that tool for my 1953 Fregerson tractor, and see if that helps.
Another thought is where I installed B Body disk brakes from Dr Diff, I'm wonder if these parts have caused a bump steer problem, which would cause darting. On flat smooth roads the car tracks nicely.
Sorry about the long diatribe.
I'm considering installing a Burgeson box, and be done with frigging around with the old factory unit. Has anyone installed a Burgeson box, and how much of a difference did it make in handling.
As for the inability to bring caster on the right into spec, would a Q1A upper control arm accept a set of eccentric bushings which may provide enough correction to bring the caster in spec?
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Caster is the harder one to measure as you need turn plates to use a simple gauge like I have.