Early Bronco Dana 20 Transfer Case
For 66-77 Ford Bronco enthusiasts, TOMS OFFROAD offers a one-stop-shop for all Dana 20 Transfer Case needs. Our rebuilt units are expertly assembled in-house by skilled technicians using high-quality rebuild components.
66-77 Ford Bronco Transfer Case Information
Transfer case components designed to support power distribution and reliable drivetrain operation.
- Includes transfer cases and related components for 66-77 Ford Broncos.
- Supports proper distribution of power between front and rear axles.
- Designed for compatibility with Bronco drivetrain configurations.
- Available options support both replacement and upgraded setups.
- Durable construction supports consistent performance in on-road and off-road use.
Frequently Asked Questions
What transfer case came in the early Ford Bronco?
The 1966–1977 early Ford Bronco was equipped with the Dana 20 transfer case as standard equipment. The Dana 20 is a part-time 4WD unit with high and low range operation, suited for medium off-road use. It was available in both a floor-shift T & J-shift configuration. The T-Shift application ran from 1966-1972, and the J-Style went from 1973-1977.
How do I rebuild an early Bronco transfer case?
Rebuilding an early Bronco Dana 20 transfer case involves disassembly, inspection of the mainshaft, gears, shift forks, and bearings, followed by replacing worn components with a rebuild kit. Tom's Offroad carries Dana 20 rebuild kits with all gaskets, seals, and snap rings. This is a moderate DIY job for someone comfortable with manual drivetrain work.
What fluid goes in an early Ford Bronco transfer case?
The Dana 20 transfer case in early Broncos uses GL-5 80W-90 gear oil. Always check the fill level when buying a used Bronco, as neglected fluid is a leading cause of Dana 20 wear. Drain and refill the fluid as part of any restoration or major mechanical service.
What transfer case is in a 1969 Ford Bronco?
The 1969 Ford Bronco was equipped with the Dana 20 transfer case, the same unit used throughout the 1966–1977 production run. The 1969 model used the t-shift floor-mounted shifter design. Parts for the Dana 20 are widely available, and rebuilding or upgrading the case is well-documented in the early Bronco community.
Can I upgrade the early Bronco transfer case to a better unit?
Yes, many early Bronco builders swap the Dana 20 for a stronger unit like the Atlas or New Process 205, which offers a better low-range ratio and stronger construction for serious off-road use. These swaps require custom driveshaft modifications and shifter relocation but are popular in builds running larger tires and engines.