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ATS 4R100 Stage 3 Transmission Package - 99-03 Ford 4WD - 3099343224

Thoroughbred Sku #: ATS3099343224-CRE

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Product Details

Product Name: ATS Transmission Packages
Manufacturer: ATS Diesel Performance
Manufacture Part #: 3099343224
Thoroughbred Diesel Part #: ATS3099343224

The 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. The ATS Stage 3 4R100


  • ATS Five Star Torque Converter featuring a billet cover, five lock-up clutches, billet stator and a furnace-brazed impeller
  • ATS Billet Input Shaft
  • ATS Co-Pilot Transmission Lock-up Controller
  • Modified transmission pump for increased line pressure
  • High performance clutch packs with more clutches than stock
  • Re-designed accumulator pistons for a precise shift feel
  • 5 year/500,000 mile warranty

ATS Deep Transmission Pan that adds 5 quarts of fluid, featuring a finned design, magnetic drain plug and is tapped for a temperature probe. By increasing the line pressure, clutch pack surface area and modifying the valve body, the 4R100 becomes a consistent, responsive and dependable transmission.

The Stage 3 includes a billet 300M input shaft. As power increases over 400hp, or considerable weight will be towed, the input shaft takes the brunt of it. The ATS input shaft is designed to withstand extreme torque, converter lock-up sooner than stock, and competition and towing use. Beginning on the Stage 3, ATS includes a Co-Pilot Transmission Lock-up Controller.

This controller allows the user to lock the converter based on vehicle speed. The result is more power to the ground at a lower speed, thus improving acceleration, lowering transmission temperatures and helping fuel economy. The Co-Pilot will also synchronize torque converter lock-up with an exhaust brake, for added braking force.

The ATS Stage 3 4R100 is designed for trucks that see daily driving and heavy towing DUTies, aggressive tuning, and a modified turbo and/or injectors.

  • 1999-2003 Ford 4WD

ATS 4R100 Transmission Package Stage Build Comparison

  Stage 1 Stage 2 Stage 3 Stage 4 Stage 5 Stage 6
Horsepower Rating 400 500 600 700 800 1000
ATS 4R100 Transmission
5-Star Torque Converter
Deep Pan Trans Pan
Billet Input Shaft  
Co-Pilot Controller    
Billet Flex Plate      
Billet Intermediate Shaft        
Billet Output Shaft          


  • how much HP is this rated for

    Cristian Galandzi | 5/5/2020

    Ats does not rate the stages in horsepower. The stage 3 should handle from 550-600 hp under normal driving conditions.

  • How much driveline work on a 2017 ram 2500 mega cab. I am assuming both shafts need adjustments? I

    Mike | 12/22/2021

    No driveline adjustments required.