Dana 20 Transfer Case to AOD Automatic Transmission Adapter, -77 ★ Best Price Guarantee ★ 90-day money-back guarantee → Start Your Free Trial
AOD Automatic Overdrive Conversion Adapter – 1966-77 Ford Bronco
Convert your 1966-1977 Classic Ford Bronco to an AOD automatic overdrive transmission for better drivability and highway performance. The AOD is a best-selling overdrive transmission choice, offering smooth shifting and reduced engine RPM at cruising speeds.
The AOD features gear ratios of 2.40:1 in 1st, 1.47:1 in 2nd, 1:1 in 3rd, and a 33 percent overdrive in 4th gear. The T-style Dana 20 transfer case is the easiest configuration to adapt with this transmission. J-style transfer cases can also be used, though additional shifter modification may be required.
Factory transmission position sets will require slight modification when installing this kit. Please reference our Tech Advice section for additional installation guidance.
Features
- Fits 1966-1977 Ford Bronco AOD automatic transmission conversions
- Overdrive transmission with a 33 percent overdrive for improved highway cruis









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