Richmond Gear 79-0002-1, Differential Ring & Pinion, For Ford 9 Rear Axle, Gear Ratio 3.50, 10-Bolt, 35 Spline, 10 Pinion & 35 Ring Tooth - Fits Ford/Mercury/Lincoln, Replaces Motive Gear F990350SP.

High-Performance Richmond Gear 79-0002-1 Ring & Pinion Set – 3.50 Pro Gear Designed for Ford 9" rear axles, the Richmond Gear 79-0002-1 ring and pinion set offers unmatched durability and precision for high-performance and racing applications. With a 3.50 Pro Gear ratio and big pinion design, this set is built to withstand extreme torque, making it ideal for drag racing, off-road, and other high-stress uses.Key FeaturesGear Ratio: 3.50Ring Gear Diameter: 9"Ring Gear Tooth Count: 35Pinion Gear Tooth Count: 10Pinion Shaft Diameter: 1.625"Pinion Spline Count: 35Ring Gear Material: 8620 Pro Gear SteelBolt Count: 10 Ring Gear BoltsVehicle CompatibilityFits Ford 9" Rear Axles with 3.50 Ratio and Big Pinion Pro Gear Setup.Ford1966–1986 Bronco1969–1983 E-100 Econoline1975–1983 E-100 Econoline Club Wagon1975–1986 E-150 Econoline & Club Wagon1969–1974 E-200 Econoline1975–1983 F-1001975–1986 F-1501957–1970 Fairlane1959–1967 Galaxie1962–1974 Galaxie 5001972–1976 Gran Torino1975–1980 Granada1965–1979 LTD1977–1979 LTD II1970–1977 Maverick1965–1973 Mustang1957–1979 Ranchero1955–1979 Thunderbird1968–1976 TorinoLincoln1958–1979 Continental1968–1971 Mark III1977–1980 VersaillesMercury1964–1977 Comet1967–1979 Cougar1975–1978 Grand Marquis1963–1970 Marauder1967–1978 Marquis1968–1976 MontegoReplaces OEM & Aftermarket Part NumbersMotive Gear: F990350SPWarranty & Quality AssuranceBacked by a 2-Year / 100,000-Mile Warranty, Richmond Gear ring and pinion sets are the top choice for racers, enthusiasts, and professionals. Engineered with premium materials and advanced manufacturing for reliable high-performance under demanding conditions.

• Premium ring and pinion gear set with a 3.50 gear ratio, 10 ring gear bolts, 35 ring gear teeth, and 10 pinion teeth; optimized for Ford 9" rear axles with Pro Gear construction and big pinion setup.
• Built from high-grade 8620 Pro Gear steel, this set handles extreme torque and shock loads—ideal for high-horsepower drag racing, circle track, and off-road applications where strength is critical.
• Features a 35-spline pinion, big pinion shaft for increased load capacity, 1.625" shaft diameter, and precision-cut gear teeth for maximum contact and durability under stress.
• Includes: 1 ring gear, 1 pinion gear – manufactured to exacting standards for high-performance Ford 9" differential applications; fits both OEM and aftermarket carriers.
• Backed by Richmond Gear’s 2-Year / 100,000-Mile Warranty; replaces Motive Gear F990350SP and meets or exceeds OEM specifications for fit, form, and function.