Mark Williams Male Transmission Coupler 32 Spline Steel Black Oxide - TH400 Round Steel Tubing Tubing Average horsepower gains are 10-15

Average horsepower gains are 10-15 and 15-20lb-ft of increase torque

and wipe in one direction only

1972-1972 GMC K25/K2500 Pickup

Advertised Duration 280/280

Mark Williams Male Transmission Coupler 32 Spline Steel Black Oxide - TH400 Round Steel Tubing Tubing Average horsepower gains are 10-15Product Description: Transmission Coupler Male 32 Spline Steel Black Oxide TH400 Sold Individually Mark Williams Enterprises manufactures a full range of racing axles, spools, rear end housings, steel, aluminum or carbon fiber driveshafts and disc brake kits. M W also makes an assortment of chassis and driveline components. Mark Williams Enterprises manufactures a full range of racing axles, spools, rear end housings, steel, aluminum or carbon fiber