4R100 Stage 1 Package 1999-2003 Ford 2Wd ATS Diesel GM/Chevy We've phased out our torsion

We've phased out our torsion drop kit to offer the more popular and better performing Non Torsion Drop option

Experience the perfect harmony of comfort and performance with S&M Diesel Yoga Gear

FOX performance series Internal Floating Piston gas shocks to improved ride and offroad performance

Viton O-ring seal

Cap Part Number C109112B05

4R100 Stage 1 Package 1999-2003 Ford 2Wd ATS Diesel GM/Chevy We've phased out our torsionThe factory Ford 4R100 suffers from weak points in the converter, clutch pack assemblies, valve body and line pressure limitations. These weaknesses arise when the motor's power is increased or in towing applications. ATS addressed these concerns by re designing the torque converter, transmission pump, valve body and clutch packs. The result is a solid transmission setup to meet the demands of your Ford Super Duty. Includes: ATS Five Star Torque