Best 4R70W Transmission Rebuild Kits
Ford introduced the 4R70W transmission in 1993 as the successor to the standard AODE transmission, which was used from 1991-1992. This Ford transmission first appeared in the Lincoln Mark VIII and some of Ford’s F-series pickup trucks.
The stock 4R70W has proven to be a reliable transmission with significant torque output. It has been incredibly resilient to harsh driving in rough terrain, as it has been mainly used in Ford F-150 and F-250 trucks.
Since it’s on the verge of becoming obsolete, many Ford owners still want to maintain their 4R70Ws by installing rebuild kits. Although you might find some of the mentioned kits expensive, they contain all the necessary parts, so you don’t have to spend extra money on the parts that you miss.
Here are some of the best 4R70W rebuild kits to upgrade and overhaul your transmission.
Best 4R70W Rebuild Kits
Master Rebuild Kit for the 4R70W Transmission by OPT (1992-2012)
The Master Rebuild Kit for the 4R70W transmission by Oregon Performance Parts (OPT) consists of the following items:
- Friction clutch plates
- Transtec overhaul gasket set
- Overdrive band
- Pump bushing
- Extensive housing bushing
- Fluid filter
This kit is mainly meant for Ford vehicles but also fits some Lincoln and Mercury models. It is also compatible with the 4R70W transmission manufactured between 1992 and 2012.
Additional parts for this transmission include a reverse band, high-quality steel plates, an accumulator piston kit with molded rubber, an overdrive servo, reverse servo, Torrington bearings, and a thrust washer set.
It can also include a USA-made HD torque converter if you want to overhaul your 4R70W transmission completely.
The basic rebuild kit is priced at around $186, with additional costs depending on the extra parts you choose.
Ford 4R70W Master Rebuild Kit by Raybestos (1993-1995)
Raybestos is one of the few transmission parts manufacturers that still offer parts and rebuild kits for the 4R70W transmission manufactured between 1993 and 1995.
This rebuild kit contains the following parts:
- Hybrid technology friction clutch plates
- Valve body, leak-proof gaskets
- Transmission body gaskets
- A complete rubber kit
Since this is an old 4R70W transmission model, Raybestos only provides the most basic rebuild parts.
Replacing gears, control valves, or other major components might be a problem due to these parts’ unavailability. That is why only the most essential parts, like the clutch plates and gaskets, are included in this kit.
The price of this kit is around $240, with additional costs.
Ford 4R70W Master Rebuild Kit by Raybestos (1996-2003)
This rebuild kit has the same parts as the previous one. This master kit contains only standard rebuild parts for the 4R70W transmission.
OEM transmission and valve components are no longer manufactured for this transmission, which is why Raybestos offers the essential parts in this kit:
- Raybestos Powertrain friction clutch plates with hybrid technology
- Valve body gaskets
- Transmission body gaskets
- Complete rubber seal kit
This transmission rebuild kit applies to the 4R70W transmission in Ford F150 and F250 pickup trucks. It is also compatible with the Ford Mustang 1996-2003 V6 3.8L and the V8 4.6L.
The price of this kit is around $240, with additional costs.
Raybestos offers another Super Rebuild Kit with additional parts, which I will discuss next.
Ford 4R70W Super Rebuild Kit by Raybestos (1996-2002)
The Super Rebuild Kit by Raybestos features the same basic parts as the previous Master Rebuild Kit but also has additional components. Raybestos still offers this kit for the older 1996-2002 4R70W model because it is not yet an obsolete transmission.
This Super Rebuild Kit includes the following components:
- High-quality steel plates
- Raybestos hybrid technology friction clutch plates with a unique groove pattern
- A kevlar-lined overdrive band
- A kevlar-lined low reverse band
- A steel plate
- A complete gasket and seal kit with all the necessary rubber seals
This transmission kit applies to 4R70W transmission models installed in Ford F150 and F250 pickup trucks, as well as the Ford Mustang V6 3.8L and the V8 4.6L from 1996-2003.
The price of this kit is around $330.
Ford 4R70W Performance Rebuild Kit by Raybestos (2003-2014)
For the 4R70W transmission models manufactured between 2003 and 2014, Raybestos offers a complete Stage 1 Performance Rebuild Kit with many parts and components.
This kit is also compatible with the 4R75W transmission because of its similarity with the 4R70W.
The kit contains the following parts:
- A stage 1 friction clutch pack
- Kolene steel clutch pack
- Kevlar-lined, high-energy overdrive band
- Kevlar-lined Bogwarner low reverse band
- Thrust washer kit
- Bushing kit
- Transmission filter
- Complete gasket overhaul set with all the necessary seals and rubbers
The parts in this kit provide multiple advantages over the stock ones. They enable the transmission to output more horsepower and torque while being highly resistant to heat and damage.
The friction clutch plates have a long life due to the minimum amount of wear and instant gripping power.
The price of this kit is around $500.
4R70W Complete Rebuild Kit by Monster Transmission (1994-1997)
Unlike Raybestos, which only offers the most basic 4R70W transmission rebuild parts for the 1993-1995 models, Monster Transmission offers this complete kit they call the “SS Mega Monster Transmission Rebuild Kit.”
This rebuild kit is rated to withstand up to 600 horsepower and 550 foot-pounds of torque. It includes the following components:
- 4-intermediate, 5-reverse,5-forward,and 6-direct Kolene steel plates
- 4-intermediate, 5-reverse, 5-forward, and 6-direct high-performance clutch plates
- A reverse servo with molded rubber and a reverse servo cover
- Overdrive servo with molded rubber
- Metal-clad seals and sealing rings
- Complete set of gaskets and seals
- 1-2 accumulators and accumulator cover
- Front kevlar band
- Rear kevlar band
- Complete rear drum sprag assembly
- Dual shift solenoid
- TCC solenoid
- EPC motor
This kit has a base price of around $850, plus additional costs for extra parts that you may add to it.
4R70W Complete Rebuild Kit by Monster Transmission (1999-2003)
This Complete Monster Rebuild kit is specifically manufactured for 4R70W transmission models from 1999 to 2003. It is the SS kit, which indicates the Super Sport performance parts that are included in it.
The kit comes with the following components:
- Valve body gaskets
- Extension body gaskets
- Pump gaskets
- Rubber seals for the valve body pistons
- Molded rubber seal for the valve body pan
- Complete set of O-rings
- Front and rear metal-clad seals
- Selective washer kit with different thickness washers
- Complete bushing kit
- High-quality complete clutch packs
- High-quality complete steel plate packs
- Fluid filter
- Front and rear Kevlar bands
- Dual shift solenoid
- TCC solenoid
- EPC motor
- Black case connector
The kit also comes with a complete set of instructions on how to install it if you want to perform a DIY overhaul of your transmission.
This kit has a price of around $935.
4R70W Complete Rebuild Kit by Monster Transmission (2004-2007)
The last Super Sport rebuild kit by Monster Transmission worth mentioning is the one applicable for 4R70W transmission models from 2004-2007.
This may seem like an identical rebuild kit to the previous two, but it’s specifically designed for the 2004-2007 4R70W transmission. It is a kit that contains all the performance parts needed for a complete overhaul.
This kit contains:
- Valve body, extension body, and pump gaskets
- Lip seals for the pistons in the transmission
- A molded rubber pan gasket
- Complete rubber and Teflon sealing rings
- Front metal clad seal for the pump
- Metal clad seal for the rear extension housing
- Selectable washers with different thicknesses
- Bushing kit
- Race clutches (complete set)
- Kolene steel plates (complete set)
- Front and reverse kevlar bands
- Set of drum and rear sprags
- Fluid filter
- A complete electronics kit (solenoids, EPC motor, hard black harness)
The price of this transmission rebuild kit is around $950.
4R70W Category 2 Rebuild Kit by Suncoast (1993-2004)
For those of you who want to perform an even more extensive overhaul of your 4R70W transmission model manufactured between 1993 and 2004, the Suncoast kit may be for you. It is one of the best 4R70W rebuild kits for 1993-2004 transmission models.
This kit comes with an extensive list of rebuilt parts:
- Raybestos steel clutch module
- Raybestos Pro Series overdrive band
- Low/reverse band
- Molded piston kit
- Bushing kit
- Thrust washer kit
- Overhaul kit
- Complete set of gaskets and seals
- An updated direct drum thrust bearing
- Torrington thrust bearing kit
- Front pump bushing
- Spiral retaining ring
- Pressure regulator spring
- 1-2 accumulator kit
- 2-3 accumulator piston
- A heavy-duty intermediate shaft
- Smart tech-forward clutch drum
- A new torque converter
- A heavy-duty forward sun gear
As you can see, this is one of the best rebuild kits for the 4R70W transmission.
It includes all the parts from the previous kits, plus several new ones, the most important ones being the torque converter, the heavy-duty sun gear, and the smart tech-forward clutch drum.
Because of the number of parts involved, this kit has a price of around $3,200.
