For the first time ever, ATI is proud to introduce 1.64 ratio gearsets for ATI Superglide 4 Transmissions and 1.66 ratio Gearsets for the standard 19 spline Powerglide input shaft. The new 1.64 ratio Vasco straight-cut gearsets feature a Superglide 4 Sun Gear (27 spline 1-3/8th input shaft) and a Turbo 400 Output. They're available in both standard 28-inch (#204900VS) and shorty 18-inch (#204898VS) lengths with a "Lightweight option" (28” #204900VS-LWT, Shorty 18” #204898VS-LWT) that includes a billet aluminum carrier and the 28” features a gun drilled output shaft.

For our non-Superglide racers, ATI's new 1.66 ratio gearset comes with a standard Powerglide 19-spline input shaft Sun Gear and standard 27 spline Output with 12 DP Vasco gears in a bolted carrier. They are available in standard 28-inch (#204897V) and shorty 18-inch (#204896V).

ATI Performance Products, Inc. is located in Baltimore, MD, and specializes in producing and maintaining high performance products for street and strip applications. Over the years ATI has earned a reputation for its superior technology, attention to detail, and rigorous testing under race conditions.