Installation Notes

• When using the arms on GM A-bodies, GM tall spindles, machined lower ball joints, and different outer tie rods are required. For 1964-70 A-bodies, use outer tie rod part #459-3007; for 1971-72
  A-bodies, use #459-3008.
• Negative roll systems will drop the front ride height 1 inch because of the taller spindle and lower ball joint combination. The maximum backspacing on 1964-72 A-bodies is 5-7/8" with a 17" wheel,
  5" with a 16" wheel, and 4-1/2" with a 15" wheel.
• When using the arms on GM G-bodies, GM tall spindles are required. Spindle tapers for this conversion are the same as the standard, shorter spindle.
• Factory upper control arms cannot be used with negative roll systems because they are too long, and they won't allow for proper alignment.
• Factory lower control arms can be used in negative roll systems, but they will require machined lower ball joints (part #459-2005).