rack n pinion front steer ackerman issues...explain...

front steer systems using A arms are a bit harder to design from a practical perspective. This is because the steering arms themselves seem to have a need to occupy the same space as the brake rotors [drums also], or the wheels themselves. this is on a factory setup of course. You may also notice that on the vast majority of front steer set-ups the spindle {or the strut for that matter} has a lot more KPI [king pin inclination] as compared to vehicles utilizing rear steer. the KPI is an angle as viewed from the front of the vehicle and it is an imaginary line that goes thrrough the center of the ball joints. On our A body cars the ball joints are almost on top of each other, very little KPI. Now compare this to the typical Mustang II spindle, and you will see that it has lots of KPI and it is a front steer setup. The KPI makes it easier to get the front steer system to fit all together. the steering arm has more room because of the KPI geometry. I say all this but of course there are exceptions.One being the late 60's chevelle and same year camaro's which basically used the same spindle but one was front steer and the other was rear steer but they both used the same spindle with different steering arms of course. the spindle utilized some KPI but not as drastic as some other setups.