Tier One 4R100 Stage 1 Transmission Features:
- Handles up to 400HP from aggressive tuning and bolt-on performance mods
- Includes upgraded internal components that fix common 4R100 transmission issues and improve reliability
- Complete drop-in transmission for 1999-2002 F250 & F350 7.3L Powerstroke and gas trucks
- Includes billet torque converter, billet input shaft, TransGo valve body repair kit, Overhaul Kit, performance clutches, new center support with custom machining and center support snap ring, new Sprags, new intermediate band, an ATS billet transmission dipstick tube, Tier One High Pressure Valve Body, a deep transmission pan, and OE-style filter
- Fixes common 4R100 problems while letting you add power and handle aggressive applications
- Valve bodies are carefully inspected and dyno-tested before installation
- Black finish for a great look under your truck
- Backed by a 2-year/unlimited mileage warranty
- Requires an additional core charge and freight shipping
- If you have questions or want a custom 4R100 transmission build, contact Tier One or call 602-399-5484!
Built 4R100 Transmission that's Designed to Handle Up to 400 Horsepower from Bolt-On Mods and Aggressive Tuning
Both the 7.3L Powerstroke and the Triton V10 can make a good amount of extra horsepower and torque with even a few performance parts and aggressive tuning, but the factory 4R100 already struggles at factory power levels, much less when you turn up the heat. The Tier One Stage 1 4R100 Transmission was specifically designed to handle more power than stock, as well as heavy towing, aggressive street driving, tough off-roading, and even occasional sled pull use without letting you down. The Stage 1 4R100 transmission features a combination of heavy-duty upgrades and new OEM and OE-style components to get your big 1999-2002 F250 or F350 improved power-holding and general reliability than the factory 4R100 transmission all in one place. Tier One's Stage 1 4R100 is a 100% complete, drop-in transmission that installs right in place of your Super Duty's factory transmission without the need for any permanent modifications or custom tuning. The Stage 1 transmission is the perfect choice for mildly upgraded F250, F350, and F450 trucks that need a rock-solid and reliable transmission that will last for life!
Comes with a Billet Torque Converter, Billet Input Shaft, High-Pressure Valve Body with a TransGo Tugger Kit, Overhaul Kit, Performance Clutches, New Center Support with Custom Machining, Center Support Snap Ring, New Sprag Clutches, New Intermediate Band, ATS Billet Dipstick Tube, Deep Transmission Pan, & OE-Style Filter
Every Tier One Stage 1 Transmission features some serious performance upgrades that allow it handle more power, as well as OE-replacement components to help improve its reliability and keep your awesome Super Duty build on the road and kicking ass for years to come. The Stage 1 4R100 Transmission starts out with a billet torque converter that's far more resistant to warping and cracking under load than stock. The torque converter feeds into a billet input shaft made out of 300M steel that is much stronger than the factory cast steel input shaft and resistant to both twisting and shearing when placed under high levels of load. The Stage 1 Transmission is built around a high-pressure Tier One valve body that's fitted with a TransGo Tugger Kit which features a new calibration plate, springs, valves, snap rings, and seals that all work together to deliver accurate shifting and improved fluid flow to the transmission's critical components when under load. Tier One upgrades the Stage 1 transmission clutches to performance HD clutches with improved friction materials for better power-holding and performance under load. Each Stage 1 transmission receives a master overhaul kit with new seals, gaskets, O-rings, and hardware to ensure that all the transmission's potentially wearable parts are replaced for ultimate reliability. To prevent the common center support failure in the stock 4R100, Tier One installs a new center support with custom machining and a new center support snap ring that prevents the support from getting beaten to death against the transmission's internal lugs. Every Stage 1 4R100 transmission comes with new rear, intermediate, and overdrive Sprag clutches, as well as a new intermediate band to further improve long-term reliability. To fix a common source of leaks, Tier One includes an ATS Billet Dipstick tube that features a two-piece billet aluminum design with built-in seals. The 4R100 Stage 1 Transmission is rounded out by a deep, cast aluminum transmission pan that has more fluid capacity than stock and improves cooling over the stock pan, as well as an OE-style fluid filter.
Fully Overhauled Ford 4R100 Transmission for Excellent Reliability and Performance
During Tier One’s build of your 4R100 Stage 1 Transmission, we go over every inch of its internal components to guarantee you excellent functionality, great shifting, and awesome reliability. All parts and components are disassembled and cleaned from our OEM cores to ensure your new 4R100 transmission is free from contaminants and other debris. We carefully inspect your transmission’s planetary geartrain for damage before fully speccing all your bearings and washers for endplay. The included rebuild kit includes new seals, gaskets, and sealing rings to replace all the wearable parts of the transmission before it’s installed on your Ford Super Duty F250 or F350 truck.
Thorough Testing of the Valve Body and Entire Transmission Before Shipping
We here at Tier One take pride in every built Ford 4R100 transmission we manufacture for the Ford F250 and F350 Powerstroke and Triton V10 trucks. To make sure you get a built 4R110 transmission that’s as tough as your truck, Tier One puts the valve bodies and entire assembled transmissions through rigorous testing to ensure you get the reliability you need for heavy towing and hauling applications with your 7.3L Powerstroke diesel or Triton V10. All valve body solenoids are carefully tested to ensure flawless operation. After assembly of the valve body, it goes through rigorous dyno-testing to ensure proper fluid flow, line pressures, and solenoid operation. After final assembly of the transmission itself, we put it through a complete air-check to find potential leaks before a final inspection and shipping out.
4R100 Stage 1 Transmission Specifications:
- Vehicle Fitment: 1999-2002 Ford F250, F350, F450 with 7.3L Powerstroke or Triton V10
- Transmission Type: Ford 4R100
- Power Rating: Up to 400 Horsepower
- Torque Converter: Billet Torque Converter
- Input Shaft: 300M Billet Steel
- Intermediate Shaft: OEM
- Output Shaft: OEM
- Forward Drum: OEM
- Clutches: Performance HD Clutches
- Valve Body: Tier One High-Pressure Valve Body
- Shift Kit: TransGo Tugger Kit
- Center Support: Custom Machined with New Snap Ring
- Sprags: Rear, OD, & Intermediate
- Bands: New Intermediate Band
- Transmission Pan: Deep Cast Aluminum Pan
- Dipstick Tube: Billet
For 1999-2002 Ford Super Duty Only: this transmission will only fit 1999-2002 Ford F250, F350, F450, and F550 trucks that came from the factory with 4R100 automatic transmissions. Also check out all of Tier One's
Built 4R100 Transmissions.
Backed by a 2-Year, Unlimited Mileage Warranty: each of our Ford 4R100 Transmissions comes backed by a 2-year, unlimited warranty. See our
warranty terms and conditions for more details.
Recommended gearing: the following gearing is recommended for the following tire sizes, and is required for Tier One to honor your warranty:
- 35" Tire: 3.73 gears or higher
- 37" Tire: 4.10 gears or higher
- +38" Tire: 4.56 gears or higher
Core charge: this transmission includes a $2000.00 core charge that will be refunded upon receipt of your stock transmission. For more information and/or instructions on sending in a core, call 602-399-5484.
Freight Shipping: this transmissions ships via freight. Please carefully inspect your transmission before signing your Bill of Lading. If your transmission arrives damaged, please call us directly at 602-399-5484.
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