Description
The NV3550 to Dana 20 Adapter is specifically designed for 1966-77 Bronco models, providing a reliable and efficient transition between the NV3550 transmission and the Dana 20 transfer case. The NV3550 features a 4 to 1 low first gear combined with a .22% overdrive, delivering remarkable driveability whether you’re navigating urban roads or rugged terrains. Recognized for its smoother operation compared to the NV4500, this transmission offers a less “truck-like” driving experience, making it ideal for both everyday use and off-road adventures.
Key benefits include:
– Compact design allowing for easy installation without relocating the transfer case or making driveline changes.
– Torque capacity rated at 300 lb.-ft.
– Gross Vehicle Weight Rating (GVWR) of 7,200 lbs., with a Gross Combined Weight (GCW) of 11,000 lbs.
To complete the swap, this adapter requires:
– A compatible stock bell housing
– Clutch disk
– Adapter to the transfer case
– Shifter bracket
– Cross member mounting kit
– Shifter knob
– Shifter handle
Additionally, a 1-inch body lift simplifies the installation process. Note that the NV3550 is no longer in production; please inquire about the new AX15 for a complete transmission solution.
Features & Benefits:
- Designed for 1966-77 Bronco
- Facilitates NV3550 transmission installation
- 4 to 1 low first gear and .22% overdrive
- Enhanced driveability for on-road and off-road use
- Smooth shifting experience
- Compact size for easy fitting
- 300 lb.-ft Torque rating
- 7,200 lb. Gross Vehicle Weight Rating
- 11,000 lb. Gross Combined Weight Rating
Technical Specs:
- Vehicle Compatibility: 1966-77 Bronco
- Transmission Compatibility: NV3550 to Dana 20
- Low First Gear Ratio: 4 to 1
- Overdrive Ratio: .22%
- Torque Rating: 300 lb.-ft
- Gross Vehicle Weight Rating: 7,200 lbs.
- Gross Combined Weight Rating: 11,000 lbs.
- Required Additional Components: Stock bell housing, clutch disk, transfer case adapter, shifter bracket, cross member mounting kit, shifter knob, shifter handle
- Recommended Body Lift: 1 inch





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