Description
Description
4R70W Level 4 designed for Ford Small Block engines using a 2-bolt starter & 4x4 applications with factory Ford Bronco Dana 20 transfer case. This will require the use of a standalone transmission controller unless this is going into a factory application. Our 4R70W's are designed to work with 1998-2003 wiring for standalone transmission controller. Builders working with traditional 302 or 351 Windsor engines rather than modern modular blocks should opt for the
Performance Specifications
- 4R70W Level 3
- 4r70w small block level 3
- Rated up to 500HP
- Rated up to 400 FT-LBS
- Converter: Custom built & custom stalled 13" lock up or 13" billet Yank Performance Converter
- stall: 1800-2,200
Build Details
- to guarantee proper bellhousing alignment.
- Master Overhaul Kit with Hardened Steels
- Raybestos Stage I Frictions
- High Performance Valve Body Reprogramming Kit
- New electronics – includes updated EPC, Shift Solenoids, Lock Up Solenoid,
- Internal Wiring Harness, Output Sensors
- Filter
- Complete Torrington Bearing Kit
- New Bushing Kit
- New Reverse Band
- Alto Red Eagle Wide O.D. Band
- High Capacity 4 Plate Intermediate Clutch
- Direct Clutch Pack (8 Frictions)
- Rev. Drum w/ Heavy Duty Mechanical Diode
- Updated Sun Shell and Gear
- New Low Spring and Roller
- High-Capacity Pump Assembly
- Updated O.D. Servo Pin and Piston
- Updated 3rd Accumulator Piston
- Advanced adapter 4R70W to Dana 20 transfer case adapter installed
- Custom 360-degree Adjustable Shift Linkage Arm
- New OE Pan
- This transmission assembly is 26-1/2" overall in length is 1.750" longer than the early Bronco drivetrain assemblies.
- The original V8 drivetrain assembly is normally 24.750"" and there will only be approximately
- 1-3/4" of a difference. The U-shaped shifter pattern used on the later model Bronco transfer cases may not
- be compatible with this adapter housing. You will need to either modify the mounting or change to the earlier
- model shifter pattern that had a straight design. This requires new shift rails to be install in the transfer case.
- 2. The crossmember support that we have provided on the bottom of the new adapter housing is very similar
- to the original support bracket. It may be necessary to modify the donuts and bolts in order to assemble the
- existing crossmember to the new adapter housing.
- This kit has been designed to retain the stock Bronco rubber T/C mounts. These mounts were previously
- equipped with a 1/2" bolt. Our casting has been drilled and tapped for a 7/16" bolt. We have supplied this kit
- with the necessary sleeves, washers, and bolts to properly secure this adapter.
Gear Ratios
- 1st: 2.840
- 2nd: 1.550
- 3rd: 1.000
- 4th: 0.700
