DieselSite Heavy Duty Transmission, Ford (1989-98) F-250, F-350, F-450, F-550, 6.9L & 7.3L Powerstroke, E40D (2wd)

Engineered to Last!
-Heavy Duty E40D for the 6.9L & 7.3L Powerstroke
-Designed for demanding conditions
-Improved Performance at Affordable Pricing
-Eliminates sloppy shifting
-Transmissions usually in stock and ready to ship - short lead times if not
-Short Lead Times on custom builds
-Each Unit 100% Dyno Tested – NO DOAs
-Built in the USA

1989-1998 Ford E40D F250 - F550 6.9L & 7.3L Heavy Duty Diesel Transmissions:

*NO PTO OPTIONS AT THIS TIME. Please note: If you have a PTO transmission, you must put a PTO transmission back in.

Several years in the making.
After purchasing Factory Tech Transmissions in April of 2012, DieselSite spent the last couple years setting up the lathes and mills to cut special parts, installing blast cabinets, paint booths, and a state of the art $250,000 dynamometer powered by BlueReach Automation. They can duplicate actual driving and load conditions in a truck, including all upshifts and downshifts.

-Designed for towing performance.
-Increased power transfer to the rear wheels
-Improved shift feel
-More durable than OEM.
-Clutch material designed to handle extended and elevated temperatures without burning.

Standard Specifications in every transmission:
-Direct and Forward clutches built with 120% of OEM clutch surface area.
-Coast Clutch upgraded with 200% of OEM clutch surface area, custom spiral snap ring, and fully cut snap ring groove to hold up to exhaust brakes.
-Overdrive built with 133% of OEM clutch surface area to hold up to towing in OD.
-Intermediate clutches built with 133% of OEM clutch surface area.
-Pump modified for increased line pressure
-Spiral snap ring over center support.
-45 element intermediate sprag
-Case to center support sealed to prevent internal leakage
-All steel planetary gears.
-Every single clutch pack is measured and set to exact clearances- every unit within .003"
-Torrington bearings throughout.
-High Energy 850° frictions in all forward gears (including overdrive) - no 4R100 has ever had this. A DieselSite exclusive!
-Full thickness steels for maximum heat transfer from clutches
-Every remanufactured part is run through their de-burring machine.
-New Output Speed Sensor
-New Transmission Speed Sensor
-New Transmission Range Sensor
-New thermal bypass valve
-Custom In-house built valve body for shorter shift duration - firmer shifts and longer clutch life.
-DieselSite has a transmission hydraulic circuit pressure test machine to insure no internal leakage occurs.
-Every Unit is fully tested in their own Transmission Dynamometer - No DOA units!
......Many more modifications we do to improve performance and reliability

Shipping based on your location. If you need liftgate service, you will need to specify this and be aware that there is a $75.00 additional charge for this service. We will handle all the shipping arrangements getting the transmission to you in a shipping container and arrange the pick-up of your core when you are ready. So, this shipping cost is all inclusive (other than liftgate if needed) to cover shipping to you and the shipping to get the core back to us.

Core Charge. The transmission is shipped to you in a molded shipping container. We must get this case back with your transmission core. If you send back your core without the case, you will only get 1000.00 of your core fee returned. The case has a 250.00 core fee on it. If you ordered a TC and do not send your tc core back with your transmission, there will be another 100.00 deducted. ***Transmission casing can not be broke.

Custom Tuning Notes: Ask your tuner to leave the line pressures set at stock levels. Increasing line pressures electronically will only cause very harsh shifts.

Options for custom builds include:
MagHytec Deep Transmission Pan
300M Advanced Alloy Billet Input Shaft
300M Advanced Alloy Billet Intermediate Shaft
300M Advanced Alloy Billet Output Shaft
Single Sided Intermediate Clutch Pack- Designed for high rpms/ high hp drag racing applications. This is a must for Ford Lightning owners!
Shipping: Shipping on this item can not be expedited.
Was: $3,600.00
Sale: $3,399.00
Save: 6%
Save: $201.00

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Shipping Information

  • Item Requires Shipping
  • This item ships in its own box.
  • Shipping on this item can not be expedited.

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