Ford Racing 3.73 Ratio Ring and Pinion 34 Spline Pinion 8.800" Ring Gear Ford 8.8" - Ford Mustang 2015-16 HSXLG11SASPA 59% cumulative efficiency (independently tested)

59% cumulative efficiency (independently tested)

Dyno tests showed gains of 5 HP and 9 ft-lbs

This kit relocates the thermostat from the cold side of the radiator to the hot side for improved cooling

Magnetic Locating Helmet Anchors

1993-1998 GMC C1500

Ford Racing 3.73 Ratio Ring and Pinion 34 Spline Pinion 8.800" Ring Gear Ford 8.8" - Ford Mustang 2015-16 HSXLG11SASPA 59% cumulative efficiency (independently tested)15 19 RING AND PINION SUPER 8. 8in. 3. 73 IRS Requires M 4210 B3 Install Kit OEM Quality Provides The Strongest Quietest Gears On The Market Requires Aftmkt Calib. If Vehicle Not Equipped w This Gear Ratio Made in the USAFord Racing offers a variety of products for hard core racing and street vehicles. Ford Racing is the performance parts division of Ford Motor Company. They offer a selection of replacement and upgrade parts specifically for Ford