Ford offered a 9-inch rear end with ratios ranging from 3.91:1 to 4.56:1 ratios. The entire drivetrain of the R-Code Fairlane is designed to sustain prolonged high-speed runs and drag racing launches.

The horsepower wars were in full swing by 1966, and Chrysler had just released its NASCAR-derived street HEMI engine. As a follow-up to its dedicated drag racing 1964 Thunderbolt, Ford responded ...