The OEM spring is incredibly soft, so we discovered the need for a significantly higher spring rate in this application. The Speed Factory Racing Upgraded D-Series Shifter spring is more than 600% stronger than the OEM spring, giving your shifter a firm, positive feel and returning the shifter to the center position with authority. Rowing through the ratios more quickly and accurately will assist all D-Series transmissions to shift better, notably the 2-3 shift. It also reduces the irritation caused by frequent 2-3-2 and feared 1-2-1 transmission miss-shifts. Simply move the shifter ahead, and it will transition into third gear on its own. Key Features: Wheel made of aluminum alloy in one piece for durability and lightness. They increase the speed at which your gear stick moves toward the middle of the gearbox and maintain force on it, giving you a better sense of the shifter. Five-spoke design with splits and y-spokes. It varied finishes with different milling and accent possibilities. Undercut lip draws attention to the spokes. Cap for Shift Racing Center. Product Details: SKU: 93-93453 UPC: 840080498812 Weight: 0.01 LBS Unit Of Measure: EA