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HomeShop by DepartmentPerformanceTransmissionsTransmissionATS E4OD Stage 6 Package 1989-1991 Ford 4WD ATS Diesel

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ATS E4OD Stage 6 Package 1989-1991 Ford 4WD ATS Diesel

Thoroughbred Sku #: ATS3099643104-CRE

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$8,221.50 On Sale! $7,927.93

+ $700.00 Shipping

* Core Exchange Option:

Terms & Conditions for Cores

Many stock replacement parts such as turbos, injectors, injection pumps, and high pressure oil pumps have a core charge that is associated with the new replacement part. You must return the old part to receive a refund on the core charge.

In some cases, the core is not reusable, such as in the event of a cracked case, at which point the core deposit would not be credited as the core component is not reusable.
Cores that have been disassembled and/or have missing and/or damaged major components will not receive full core credit.
Returned cores must be on a "like-for-like" basis, meaning that the returned core has the exact same fitment as the remanufactured component that was purchased. If the core is not "like-for-like," your core may not be eligible for return/credit.
You are responsible for core return shipping cost.

If you plan on returning your core you have two options.

Thoroughbred Diesel offers defer the upfront core charge when purchasing via credit card payment.

OPTION 1: You can accept the core charge, which means you will be charged for the part AND the core at time of purchase. You still have the option to send it back, and if you do, the core will be refunded back on the card used, presuming the core meets core criteria and the core is returned within 30 days from the time your order is received. If you return your core after 30 days you may refer to the Core Charge Timeline below as to how you will be refunded.

Core Charge Timeline

If the core is returned after 30 days, 90% of the core will be refunded.
If the core is returned after 60 days, 70% of the core will be refunded.
If the core is returned after 90 days, 50% of the core will be refunded.
After 6 months cores will be accepted at Thoroughbred’s discretion.

OPTION 2: You can defer the core charge. If you defer, you will not be charged for the core at the time of purchase. You will have 21 days from the time your order is received to send the core back. If the core is not received within the 21 days, your credit card will be charged for the core amount on your order. If you return your core after 21 days, you may refer to the Core Charge Timeline below as to how you will be refunded. When Core deferral (Pay Core Charge Later) is limited to payment by credit card only. ***When using PayPal or Affirm as your method of payment “Core Deferral (Pay Core Charge Later)” is not available. The core must be paid at time of purchase. ***

Core Charge Timeline

If the core is returned after 21 days, 90% of the core will be refunded.
If the core is returned after 60 days, 70% of the core will be refunded.
If the core is returned after 90 days, 50% of the core will be refunded.
After 6 months cores will be accepted at Thoroughbred’s discretion.

Core Return Procedure

Please keep all original packaging of your new item to be used for the core return.
Drain all fluids: oil, fuel, etc. out of the core before it is returned.
Place any plastic plugs or caps received on the new item back onto the core.
To insure UPS, Fed Ex, or USPS will not reject the package due to fuel or oil leakage, please wrap the core in a plastic garbage bag.
Place core inside the box.
If core return paperwork was inside the box, please complete the form and send back with the core.
Please provide a tracking number to [email protected]. Without a confirmed tracking number we cannot guarantee your core refund
If you have questions please call our core department 859-737-4966 ext. 5

I have read and I accept the terms and conditions.

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Product Details

Product Name ATS E4OD Stage 6 Package 1989-1991 Ford 4WD ATS Diesel
Manufacturer ATS
Manufacturer Part # 3099643104
Thoroughbred Diesel Part # ATS3099643104
Fitment Notes 1989-1991 Ford 4WD

The Ford E4OD transmission was designed to fit behind various powerplants, including gas and diesel engines. Most failures revolve around the torque of the diesel motor, especially when power is increased over stock. The good news is that the framework of the E4OD allows for substantial increases in reliability and capability.

The Stage 6 package includes a billet input shaft for increased reliability when towing heavy loads, under modified power levels or street performance. The billet input shaft is designed to withstand greater torsional loads than the factory shaft, thus increasing reliability. The shaft is made of billet 300M material and precisely machined for an exact fit.

In addition, we add a lock-up controller for the torque converter on the Stage 6 setup. This allows the user to base lock-up on vehicle speed and in any forward gear. This provides several benefits, including increased fuel economy, lower transmission operating temperatures and more power to the ground, at a lower speed. This feature becomes useful in towing situations and performance applications and where power at low rpm is desired.

For those trucks with an exhaust brake, the controller will synchronize torque converter lock-up with the brake. This will allow the converter to stay locked on deceleration to increase braking force.

The Stage 6 features the addition of a billet flex plate and intermediate and output shaft. The billet flex plate is designed for high horsepower/torque trucks and those that tow heavy. The flex plate is the first point of power transfer from the motor to the transmission assembly. By using a billet steel flex plate, we can increase the reliability of power transfer from the crank to the converter.

We also add a billet intermediate and output shaft to the Stage 6 package. This is a requirement for trucks with aftermarket injectors, injection pump and turbo. During high torque situations (i.e. racing), our billet intermediate shaft will absorb the torsional loads to transfer power through the transmission. Without a billet intermediate and output shaft, the transmission is at risk for failure during heavy towing/competition use.

The ATS Stage 6 Package is designed as the end-all of E4OD.

ATS E4OD Transmission Features

ATS Five Star Torque Converter featuring a billet cover, five lock-up clutches, available in either low or high stall configurations
ATS billet input shaft
ATS Commander Lock-Up Controller
ATS billet flex plate
ATS billet intermediate shaft
ATS billet output shaft
High performance overdrive, intermediate and forward clutch packs, with one additional clutch added per section
Modified transmission pump to increase line pressure, which provides increased clamping force on the clutch packs
Modified valve body that focuses around precise shifts, increase line pressure and increasing the torque capacity of the E4OD
New bearings, seals and gaskets
New low roller clutch, heavy Duty intermediate sprag, bonded coast and overdrive pistons
ATS Deep Transmission Pan which adds 5 quarts of fluid over stock, which helps keep the transmission cool
5 year/500,000 mile warranty
For more information on ATS call us at 1-859-737-4966..

ATS E4OD Transmission Package Stage Build Compariso

	Stage 1	Stage 2	Stage 3	Stage 4	Stage 5	Stage 6
Horsepower Rating	400	500	600	700	800	1000
ATS E4OD Transmission	✔	✔	✔	✔	✔	✔
5-Star Torque Converter	✔	✔	✔	✔	✔	✔
Deep Pan Trans Pan	✔	✔	✔	✔	✔	✔
Billet Input Shaft		✔	✔	✔	✔	✔
Co-Pilot^® Controller			✔	✔	✔	✔
Billet Flex Plate				✔	✔	✔
Billet Intermediate Shaft					✔	✔
Billet Output Shaft						✔

Reviews

Submit a question

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.

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