Reply to "Quick Rack"

comp2Member

5" shorter is not going to help bump steer. The original rack was off by around 2" at the inner ball joint. If your pivots are 5" shorter that you have over shot the mark in the other direction by 3".

If you are off by a 1/4 you still get bump steer. As everyone knows the bump steer shims do not fix the bump steer, it just changes the location of the parabolic arch. It gets better in bump and far worse in droop.

Height is till a key part of nailing it. This is how I obtained zero bump steer and it took a lot of work and measuring to zero it in.

Notice how I got close but used a threaded shaft and a rebuild able ball joint so I could weld on it. This made the final width adjustable on the car. . . Then it was welded.

http://www.rc-tech.net/pantera1/bump/bump.htm

9/21/176:27 AM

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