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Thread: Alignment Issue QA1
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11-04-2019 #1
Alignment Issue QA1
A year ago I bought a 67 Chevelle SS that already had a QA1 Street Performance upper control arms and sway bar installed. The lower arms, springs and shocks are still basically stock. It also had the stock power steering box, which was really sloppy. I recently installed a new Borgeson 12.7:1 box. The steering was then nice and tight...huge improvement. No more constant steering input on the freeway. The car did want to slowly track to the right, so I brought it in for alignment. Now I'm wondering what the heck is going on with these caster numbers. Negative 3.15, are you kiddin' me?
The shop is competent and their equipment is top notch. They have done other vintage cars for me in the past with good results. They just couldn't dial in any more positive caster. I got on the phone with QA1 support and we went over the possible issues. The arms are on the correct side, the cross shafts are installed correctly, ball joints appear correctly aligned. The only thing we haven't done is adjust the upper ball joint mount (the QA1's are adjustable). I'll try that, but I don't think there is 8 degrees of positive adjustment there.
Any advice or knowledge would be appreciated at this point. The car drives fine really. Maybe it steers a little too easy, but it doesn't wander and tracks straight. No bump steer either.
Frank