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Change the gearing in your Mustang for better acceleration or top end speed. This 8.8" ring and pinion set from Ford Racing is precision-machined from high-strength alloy with a 4.10:1 final drive ratio. The high strength makes it ideal for racing use. Does not include hardware. Speedometer recalibration required. Made in USA.
Note: May not be legal for use on pollution-controlled vehicles.