← Back to search Differential Ring and Pinion F105331C Application Notes For Ford 10.5" (12 Bolt) 3.31 Ratio 37 Spline Warranty F105331C Specifications Where to buy Vehicle Applications 2011 – 2022 Ford F-250 Super Duty 2011 – 2016 Ford F-350 2011 – 2016 Ford F-350 Super Duty