1989 Mustang LX Rear Suspension Upgrade - Bringing Back The Bite
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According to Martorella, pinion angle should be set at -1 or -2 degrees for most applications. He said the UPR upper control arms can be adjusted without removing it, making it easy to compensate for different size tires and lowered cars. Adjust pinion angle when the car is level on the ground or a drive-on lift. View Related Article
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