I got a reply from an email I sent John Nutter (recommended by that Mr. N that Zach's website belongs to) and this is what he told me:
10 degrees is correct. You can verify this very easily by putting a
carpenters square on a Chevy driver's side knuckle with the steering arm
removed. I only machine knuckles to GM (Chevy) specs. I machine
passenger side knuckles to be a mirror image of the driver's side. Most
arms work with this.
Are you sure the 10 degree corrected arms refer to the angle the knuckle
is milled at? I always thought that the arms were meant to mount on
correctly milled knuckles and the angle correction meant they tilted the
tie rod end of the arm 10 degrees to minimize angles on the tire rod
ends themselves. This would have to apply to both side equally to do any
good. I would suggest you check with your arm manufacturer to find out.
I would not buy any arms that were meant for anything but machining to
the correct GM specifications.
I hope this helps.
He charges $40 including return shipping, and his process is all CNC machined. I think I will probably be sending him my knuckle.
2003 FX4 Level II. Twin Shifters. Black. A few mods here and there.
Originally Posted by SuperGildo@RRP
Kyle's a smart man.