Our company collects refurbished 4R70W transmissions and sells them directly from the factory to your door or mechanic shop of your choice. We offer wholesale prices to give our customers an unbeatable discount. We also provide a transferable warranty that covers labor and part replacement for three years with no limitations inside the United States.
- Vehicle Applications – Makes & Models
- Differences Between 4R70W & AODE Transmission
- 4 Habits to Avoid to Extend the Life of the 4R70W
- Remanufactured 4R70W Transmission Updates and Upgrades
- Symptoms of a Transmission Problem
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Vehicle Applications – Makes & Models
- 1993–1998 Lincoln Mark VIII
- 1993–2003 Ford F-Series
- 1994–1997 Ford Thunderbird
- 1995–2004 Ford Crown Victoria
- 1996–2001 Ford Explorer
- 1993–2004 Lincoln Town Car
- 1994–1997 Mercury Cougar
- 1995–2004 Mercury Grand Marquis
- 2003 Mercury Marauder
- 1997–2004 Ford Expedition
- 1997–2001 Mercury Mountaineer
- 1996–2004 Ford Mustang
Differences Between 4R70W & AODE Transmissions
In 1993, the Lincoln Mark VIII was released with the 4R70W transmission, which was an updated model from the AODE. The main improvement made to the 4R70W was lowered ratios for the two lowest gears, allowing drivers to get smoother and more powerful acceleration from a standstill. It also used more robust materials and construction to improve the strength of the gears.
Trucks that use a 5.4-liter V8 engine need this stronger gearset to deal with the extra power that a V6 or V4 doesn’t have. An additional modification was made in 1998. A mechanical diode replaced the one-way roller clutch. This allowed for extra holding capacity and longer working life for the transmission.
Because of the 4R70W’s power and versatility, it works well in a variety of commercial vehicles. Some of these include its original home the Lincoln Mark VIII, the Ford Thunderbird, the Crown Victoria for law enforcement, and the Town Car. You can also see it used in heavier vehicles like the Mustang, Explorer, and the Mercury Cougar. The latest line of Ford’s products, the F series of trucks, also uses the 4R70W.
Model Number Explanation
Every transmission’s model number indicates what its specs are. The “70” in this model has two interpretations: some people think that the 70 is meant to indicate the transmission’s ability to generate 700 pound-feet of torque, but this likely isn’t the case.
By looking at the specs for the 2003 Expedition as an example, you can see that it has a maximum output of 506 pound-feet of torque, far less than 700 even at peak operating condition.
It could be argued that the “70” refers to newton-meters, assuming a converter multiplication factor of 10 at lower gears and more elastic performance. By taking the figure of 506 pound-feet used by the Expedition converts to approximately 686 newton-meters, which could be rounded to 700.
As for the rest of the model number, the “4” refers to a 4-gear transmission (not including reverse); the “R” means it is a rear-wheel drive, and the “W” means it has wider gear ratios, at least compared to the AODE.
4 Habits to Avoid to Extend the Life of the 4R70W
Even though a pickup truck is a durable piece of machinery designed for heavy use, it is possible to push it beyond its limits if you aren’t careful about caring for it. Overuse does damage to the truck’s components over time.
The transmission is especially vulnerable, and it can cost thousands of dollars to replace. Drivers make four critical errors that drastically shorten the working lifespan of the 4R70W transmission. Here’s what you can do to avoid them.
Exceeding Tow Limits
Pay attention to your truck’s maximum limit for towing cargo as written in the manual. If you go over this limit, it can damage the transmission in several ways. Clutches and bands, when placed under higher than their rated stress, can snap and destroy the transmission.
However, heat buildup is the biggest problem because it expands and weakens the metal moving parts. Gears are finely tuned to a set size, and thermal expansion ruins their performance. A custom cooler for your transmission can mitigate this problem, but you should just not overwork your truck if possible.
Exceeding Payload Capacity
Don’t exceed the truck’s payload capacity. By doing this, you risk causing damage to your transmission, not to mention your chassis, frame, bed, and tires. Remember, towing capacity and payload are not the same measurements. The payload is how much the truck can carry while towing is how much it can pull. Conflating these two terms can cause you to break your truck.
Not Changing Fluid
Change transmission fluid regularly. For an automatic, you should usually do this every 60,000 miles. The problem with old transmission fluid is that it heats up and cools down, breaking down and losing its lubricating properties.
Check your fluid levels before long trips or at regular intervals. Ask a mechanic or consult your truck’s owner’s manual for the location of the transmission dipstick. To check fluid levels, set the vehicle in park and run the engine.
Remove the dipstick, wipe it on a clean surface, and insert it in the opening. Then compare the fluid markings on the dipstick to the lines indicating accepted levels.
Ease your foot off the gas when coming under load and avoid peeling out. You don’t want to be straining to make it up an incline or trying to set a 0-to-60 record. Not only does lead foot syndrome harm the engine, but it also puts extra stress on the transmission. This habit can lead to overheating or in the worst-case scenario, stripped gears.
Remanufactured 4R70W Transmission Updates and Upgrades
We add two new clutch packs; a six-plate direct and four-plate intermediate for added performance on all standardized models.
Stronger solenoids and solenoid clips are installed for better electrical conductivity in modern transmissions.
Upgraded boost valve kit and pressure regulator valve. Improved plunger and bypass clutch sleeve to make shifting more reliable by eliminating shudder and delayed action.
Includes improved snap ring for spiral lock and intermediate clutch stake retainer. This can prevent transmission failure.
Accumulator pistons for 1-2 and 2-3 gear changes provide a smoother shifting experience and prolong the life of your clutch.
Modify the servo by adding a fresh servo pin sleeve, complete with tooling.
Eliminate leaks and increased fluid flow by installing a new pump, complete with line bore bushings.
New torque converter installed and tested for balance, as well as leaks or other defects. The upgrades surpass the original equipment specifications and reduce the likelihood of bushing wear, leaks or vibration.
Installation of a new 3-4 capacity valve sleeve and a thick plate coated with zinc alloy, eliminating cracks and leaks from stress from the accumulator piston spring.
Reinforced valves and valve bodies, as well as a direct clutch pack with eight plates. These are available for purchase packages involving heavy-duty performance, such as police vehicles and towing vehicles.
Recalibration and system correction kit included for improved pressure control.
Upon completing repairs, our repaired transmissions are tested in working and idle conditions and put through a complete road simulation via a computer program.
Symptoms of a Transmission Problem
Your truck’s transmission is responsible for taking power from the engine and transferring it to the wheels via a complicated assembly of gears, valves, and pistons. Even small problems with it can accumulate and compound into something that requires complete replacement of the transmission.
Slipped shifting, which can occur in both automatics and manuals. If the truck is driving in third gear and seems to upshift or downshift abruptly without input, slipped shifting gears may be the cause.
Shifting may also be rougher or be accompanied by loud sounds. There should be no sound when changing gears. It is also possible that the vehicle does not accelerate smoothly.
Another symptom of a bad transmission is delayed engagement. From the time you shift the gearstick to the time the transmission shifts gears should be practically instantaneous. If you experience a delay of in the vehicle’s motion, take it to a mechanic.
A fluid leak is a telltale sign that something is awry with your transmission: a valve may not have closed all the way, or a cover may have cracked. If you see transmission fluid leaking from your vehicle, it is a major issue because it is a solid, closed object. Also look at the color of the fluid. Transmission fluid is a dark red verging on brown.
If a problem develops, you’re most likely to notice the transmission light come on at your dashboard. If it comes on and stays on, it generates an error code used to diagnose problems. If it turns out to be simple, it can be fixed. More expensive problems warrant a complete replacement.
Replacement transmissions are extremely costly, running into the thousands of dollars. Even though you have to have a new transmission for your vehicle, it helps to understand what the problem is and why the part needs replacing. We can provide you with a completely refurbished transmission at competitive prices and with prompt service.