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ATS 4R100 Stage 2 Transmission Package - 99-03 Ford 4WD - 3099243224

Thoroughbred Sku #: ATS3099243224-CRE

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Product Details

Product Name: ATS Transmission Packages
Manufacturer: ATS Diesel Performance
Manufacture Part #: 3099243224
Thoroughbred Diesel Part #: ATS3099243224

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.

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 2 adds 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.

The ATS Stage 2 4R100 is designed for trucks that see daily driving and towing DUTies, aggressive tuning, and a modified turbo and/or injectors.


  • 4R100 Stage 2 Package 1999-2003 Ford 4WD
  • ATS Five Star Torque Converter featuring a billet cover, five lock-up clutches, billet stator and a furnace-brazed impeller
  • ATS Billet Input Shaft
  • 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
  • ATS Deep Transmission Pan that adds 5 quarts of fluid, featuring a finned design, magnetic drain plug and is tapped for a temperature probe
  • Engine Manufacturer: Powerstroke
  • Make: Ford
  • Models: F-250/F-350/F-450
  • Fuel Type: Diesel
  • Transmission Model: 4R100
  • Warranty: 5 year/500,000 mile warranty
  • Sold As: Kit

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          


  • Is the ATS 4R100 Co-Pilot transmission controller recommended when purchasing the ATS 4R100 Stage 2 Transmission? The motor I am pairing with is currently a stock 7.3, upgrades will occur later.

    Cliff | 2/18/2022

    The co-pilot is a good add=on purchase, not required. It will help as you upgrade your truck.

  • Does this Allison transmission bolt up the same as the 4r100 or will I have to buy additional parts before completion. Such as wiring and computer

    Blake nethery | 10/25/2021

    No, you will need adapter, wiring harness and TCM.

  • How many horse power are these transmission built to hold?

    Clayton Christopher Chamblin | 8/5/2020


  • 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.