The Yukon ring-and-pinion set for Ford 8.8" standard-rotation axles (3.90 ratio) is supplied for compatible 8.8" applications requiring a 3.90 final-drive ratio. It includes an 8.80" ring gear, a 10-bolt pattern and a 30-spline pinion sized for the ratio. Yukon’s USA Standard gear sets undergo in-house dimensional and fitment testing designed to ensure parts meet OEM-quality expectations for dependable drivetrain use.
USA Standard Ring & Pinion Gear Set For Ford 8.8in in a 3.90 Ratio