GForce Engineering manufactures severe duty half-shafts and driveshafts. Heavy duty applications that are best suited for high horsepower applications. Simple bolt in replacement of stock components add more durability, especially on forced induction, turbo or nitrous cars that experience excessive wheel hop. GForce is famous for their exclusive lifetime warranty on many of their highly rated half-shafts, drive shafts and various rear end components. Beefcake Racing is an Authorized Dealer for GForce engineering, call 1-855-827-7223 for more info and best price.