KIT INCLUDES THE FOLLOWING:
The SunCoast Guardian 4R100 transmission rebuild kit has everything listed in our Category 0 4R100 transmission rebuild kit, with the addition of our bushing kit, TransGo Tugger Kit, solenoid pack, 45 element intermediate sprag, intermediate band and our SunCoast Guardian Torque Converter. This new SunCoast Guardian Torque Converter also includes a 3-year, unlimited-mileage warranty.
The 4R Platform
The 4R100 transmission replaced the E40D transmission for the 1999 year model and was mated to the 7.3L Power Stroke diesel through the 2003 model year Ford trucks. The 4R100 proved to be a fairly reliable transmission in stock performance levels, however once power adders are introduced the transmission, becomes the weak link in the drivetrain.
This electronically controlled overdriven unit boast a first gear ratio of 2.71:1 and a second of 1.54:1, which makes it great for towing and hauling with an .71, overdrive fuel economy is also improved.
The Clutch Kit
This new 4R100 rebuild kit includes Alto Red Eagle clutches along with Kolene steels.
Red Eagle Friction is the go-to material for most performance applications. The lining has a unique dual-saturation, which imparts high friction coefficients and high heat resistance. Red Eagle clutches are designed to limit the amount of "slip" by providing a shorter lock-up time, generating less heat.
The proprietary process starts with the friction paper saturated in a phenolic resin, cured, and then saturated a second time in a silicate. The silicate imparts high heat resistance.
Red Eagle clutches:
Transgo Valve Body Calibration Kit
The valve body is the central nervous system of your transmission. Everything that transpires within the unit begins here. In our SunCoast builds, we exclusively use the TransGo HD2 Tugger Kit. This valve body calibration kit is perfect for exhaust braking and doubles the low clutch holding pressure in manual first gear for reliable downhill braking. You also have the ability to adjust shift firmness to your desired preferences. With the improved converter feed capacity, you benefit with better cooling and lubrication.
New Solenoid Pack
The 4R100 is equipped with a solenoid pack that controls shifting from gear to gear. This solenoid pack is comprised of electromagnetic solenoids. The integrity of these solenoids is imperative, as the flow rate and spray pattern could affect shift quality and clutch life. When failure occurs within the unit, it is not uncommon that the same particles and sediments you find in the bottom of the pan are also in the solenoids. This contamination of the solenoids can and will affect the fluid delivery to critical circuits within the unit.
In this SunCoast 4R100 rebuild, kit we replace the solenoid pack with a new one to ensure consistent shifts and long clutch life.
New Bushing Kit
As with any standard rebuild, this 4R100 rebuild kit also includes a new bushing kit, which also includes a new front pump bushing.
This SunCoast Category 4R100 Rebuild Kit also includes a new carbon fiber band. This band is used in manual second gear and during downshift engine braking. The carbon fiber material in this band is made to withstand a much higher heat range versus the factory material.
The Torque Converter
This Guardian SunCoast Torque Converter fits all 4R100 transmissions and is engineered to handle all of your everyday duties. Whether you're towing a camper or hauling dirt to a job site, this torque converter is designed to improve vehicle response and give you years of solid, reliable performance. It comes with furnace-brazed fins and hardened turbine splines. The clutches in this converter are carbon-graphitic for precise and accurate lock-up.
If you're looking to increase the performance of the factory unit and looking for a cost-effective solution, this is the converter for you. This converter, while great for heavy duty towing and hauling, is not intended for racing.
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