Ford 9" Pro Gear Sets

Ring and Pinion Ford 9 inch Gears Pro

Strange Engineering only uses the highest quality Ring and Pinion Ford 9 in Gears available from U.S. Gear, Motive Gear and Dana/Spicer. We offer ring and pinion Ford 9 in gears in all the ratios, diameters and spline counts you’re looking for to complete your drag car build.

The 8620 pro street gears provide excellent life for circle track, street and some drag race applications. The 9310 pro gears are designed drag racing only and absorb high impact shock loads that occur in straight line racing applications. When investing in a new ring and pinion gear set, it is important to use new bearings, seals, ring gear bolts and other essential installation components. Strange offers a wide selection of installation kits to compliment the line of ring gears.

Feel free to call us and help you decide how to gear your car for the street or strip. Or if you know the ring gear ratio you want you can order your ring and pinion gears now on the strangeenginering.com website now.

ring gear sale

Order any Gear Set Online and get free delivery and handling on your entire order!

Offer excludes truck freight and oversize fees. UPS Ground Only.

Valid on orders shipped in the contiguous United States.

  • Designed For Drag Racing Only Pro Gears may be necessary when tooth breakage occurs with Standard gear sets Produced from a softer material, the teeth can flex as opposed to crack and break The life expectancy can vary anywhere from 15 to 300 runs depending on the vehicle If a Standard gear provided acceptable life, a Pro gear may not be the right choice Machined From 9310 Forged Steel Heat Treated to Optimize Material Properties Matched Ring & Pinion Set Ring Gear - 9" OD - Tooth count 34 - 10 bolt holes in each bolt size - 7/16"-20 RH threads & 1/2"-20 RH threads Pinion - 35 spline shaft - Tooth count 10 - 1"-14 RH threads Note 35 Spline Pinions Require Capable Pinion Supports Will Not Fit OEM Or Daytona Style Supports Unsure about your application? Please contact a Strange Sales Associate to discuss your vehicle INSTALLATION KITS Using Tapered Bearing Pinion Support HD Pro & Drag race........ R5238 / R5238WR Ultra & Billet cases.... R5238UC / R5238UCR Using Ball Bearing Pinion Support HD Pro & Drag Race...... R5238B / R5238BR Ultra & Billet cases... R5238UCB / R5238UCBR
  • Designed For Drag Racing Only Pro Gears may be necessary when tooth breakage occurs with Standard gear sets Produced from a softer material, the teeth can flex as opposed to crack and break The life expectancy can vary anywhere from 15 to 300 runs depending on the vehicle If a Standard gear provided acceptable life, a Pro gear may not be the right choice Machined From 9310 Forged Steel Heat Treated to Optimize Material Properties Matched Ring & Pinion Set Ring Gear - 9" OD - Tooth count 34 - 10 bolt holes in each bolt size - 7/16"-20 RH threads & 1/2"-20 RH threads Pinion - 35 spline shaft - Tooth count 10 - 1"-14 RH threads Note 35 Spline Pinions Require Capable Pinion Supports Will Not Fit OEM Or Daytona Style Supports Unsure about your application? Please contact a Strange Sales Associate to discuss your vehicle INSTALLATION KITS Using Tapered Bearing Pinion Support HD Pro & Drag race........ R5238 / R5238WR Ultra & Billet cases.... R5238UC / R5238UCR Using Ball Bearing Pinion Support HD Pro & Drag Race...... R5238B / R5238BR Ultra & Billet cases... R5238UCB / R5238UCBR
  • Designed For Drag Racing Only Pro Gears may be necessary when tooth breakage occurs with Standard gear sets Produced from a softer material, the teeth can flex as opposed to crack and break The life expectancy can vary anywhere from 15 to 300 runs depending on the vehicle If a Standard gear provided acceptable life, a Pro gear may not be the right choice Machined From 9310 Forged Steel Heat Treated to Optimize Material Properties Matched Ring & Pinion Set Ring Gear - 9" OD - Tooth count 35 - 10 bolt holes in each bolt size - 7/16"-20 RH threads & 1/2"-20 RH threads Pinion - 35 spline shaft - Tooth count 10 - 1"-14 RH threads Note 35 Spline Pinions Require Capable Pinion Supports Will Not Fit OEM Or Daytona Style Supports Unsure about your application? Please contact a Strange Sales Associate to discuss your vehicle INSTALLATION KITS Using Tapered Bearing Pinion Support HD Pro & Drag race........ R5238 / R5238WR Ultra & Billet cases.... R5238UC / R5238UCR Using Ball Bearing Pinion Support HD Pro & Drag Race...... R5238B / R5238BR Ultra & Billet cases... R5238UCB / R5238UCBR
  • Designed For Drag Racing Only Pro Gears may be necessary when tooth breakage occurs with Standard gear sets Produced from a softer material, the teeth can flex as opposed to crack and break The life expectancy can vary anywhere from 15 to 300 runs depending on the vehicle If a Standard gear provided acceptable life, a Pro gear may not be the right choice Machined From 9310 Forged Steel Heat Treated to Optimize Material Properties Matched Ring & Pinion Set Ring Gear - 9" OD - Tooth count 35 - 10 bolt holes in each bolt size - 7/16"-20 RH threads & 1/2"-20 RH threads Pinion - 35 spline shaft - Tooth count 10 - 1"-14 RH threads Note 35 Spline Pinions Require Capable Pinion Supports Will Not Fit OEM Or Daytona Style Supports Unsure about your application? Please contact a Strange Sales Associate to discuss your vehicle INSTALLATION KITS Using Tapered Bearing Pinion Support HD Pro & Drag race........ R5238 / R5238WR Ultra & Billet cases.... R5238UC / R5238UCR Using Ball Bearing Pinion Support HD Pro & Drag Race...... R5238B / R5238BR Ultra & Billet cases... R5238UCB / R5238UCBR
  • Designed For Drag Racing Only Pro Gears may be necessary when tooth breakage occurs with Standard gear sets Produced from a softer material, the teeth can flex as opposed to crack and break The life expectancy can vary anywhere from 15 to 300 runs depending on the vehicle If a Standard gear provided acceptable life, a Pro gear may not be the right choice Machined From 9310 Forged Steel Heat Treated to Optimize Material Properties Matched Ring & Pinion Set Ring Gear - 9" OD - Tooth count 36 - 10 bolt holes in each bolt size - 7/16"-20 RH threads & 1/2"-20 RH threads Pinion - 35 spline shaft - Tooth count 10 - 1"-14 RH threads Note 35 Spline Pinions Require Capable Pinion Supports Will Not Fit OEM Or Daytona Style Supports Unsure about your application? Please contact a Strange Sales Associate to discuss your vehicle INSTALLATION KITS Using Tapered Bearing Pinion Support HD Pro & Drag race........ R5238 / R5238WR Ultra & Billet cases.... R5238UC / R5238UCR Using Ball Bearing Pinion Support HD Pro & Drag Race...... R5238B / R5238BR Ultra & Billet cases... R5238UCB / R5238UCBR
  • Designed For Drag Racing Only Pro Gears may be necessary when tooth breakage occurs with Standard gear sets Produced from a softer material, the teeth can flex as opposed to crack and break The life expectancy can vary anywhere from 15 to 300 runs depending on the vehicle If a Standard gear provided acceptable life, a Pro gear may not be the right choice Machined From 9310 Forged Steel Heat Treated to Optimize Material Properties Matched Ring & Pinion Set Ring Gear - 9" OD - Tooth count 36 - 10 bolt holes in each bolt size - 7/16"-20 RH threads & 1/2"-20 RH threads Pinion - 35 spline shaft - Tooth count 10 - 1"-14 RH threads Note 35 Spline Pinions Require Capable Pinion Supports Will Not Fit OEM Or Daytona Style Supports Unsure about your application? Please contact a Strange Sales Associate to discuss your vehicle INSTALLATION KITS Using Tapered Bearing Pinion Support HD Pro & Drag race........ R5238 / R5238WR Ultra & Billet cases.... R5238UC / R5238UCR Using Ball Bearing Pinion Support HD Pro & Drag Race...... R5238B / R5238BR Ultra & Billet cases... R5238UCB / R5238UCBR
  • Designed For Drag Racing Only Pro Gears may be necessary when tooth breakage occurs with Standard gear sets Produced from a softer material, the teeth can flex as opposed to crack and break The life expectancy can vary anywhere from 15 to 300 runs depending on the vehicle If a Standard gear provided acceptable life, a Pro gear may not be the right choice Machined From 9310 Forged Steel Heat Treated to Optimize Material Properties Matched Ring & Pinion Set Ring Gear - 9" OD - Tooth count 37 - 10 bolt holes in each bolt size - 7/16"-20 RH threads & 1/2"-20 RH threads Pinion - 35 spline shaft - Tooth count 10 - 1"-14 RH threads Note 35 Spline Pinions Require Capable Pinion Supports Will Not Fit OEM Or Daytona Style Supports Unsure about your application? Please contact a Strange Sales Associate to discuss your vehicle INSTALLATION KITS Using Tapered Bearing Pinion Support HD Pro & Drag race........ R5238 / R5238WR Ultra & Billet cases.... R5238UC / R5238UCR Using Ball Bearing Pinion Support HD Pro & Drag Race...... R5238B / R5238BR Ultra & Billet cases... R5238UCB / R5238UCBR
  • Designed For Drag Racing Only Pro Gears may be necessary when tooth breakage occurs with Standard gear sets Produced from a softer material, the teeth can flex as opposed to crack and break The life expectancy can vary anywhere from 15 to 300 runs depending on the vehicle If a Standard gear provided acceptable life, a Pro gear may not be the right choice Machined From 9310 Forged Steel Heat Treated to Optimize Material Properties Matched Ring & Pinion Set Ring Gear - 9" OD - Tooth count 37 - 10 bolt holes in each bolt size - 7/16"-20 RH threads & 1/2"-20 RH threads Pinion - 35 spline shaft - Tooth count 10 - 1"-14 RH threads Note 35 Spline Pinions Require Capable Pinion Supports Will Not Fit OEM Or Daytona Style Supports Unsure about your application? Please contact a Strange Sales Associate to discuss your vehicle INSTALLATION KITS Using Tapered Bearing Pinion Support HD Pro & Drag race........ R5238 / R5238WR Ultra & Billet cases.... R5238UC / R5238UCR Using Ball Bearing Pinion Support HD Pro & Drag Race...... R5238B / R5238BR Ultra & Billet cases... R5238UCB / R5238UCBR
  • Designed For Drag Racing Only Pro Gears may be necessary when tooth breakage occurs with Standard gear sets Produced from a softer material, the teeth can flex as opposed to crack and break The life expectancy can vary anywhere from 15 to 300 runs depending on the vehicle If a Standard gear provided acceptable life, a Pro gear may not be the right choice Machined From 9310 Forged Steel Heat Treated to Optimize Material Properties Matched Ring & Pinion Set Ring Gear - 9" OD - Tooth count 37 - 10 bolt holes in each bolt size - 7/16"-20 RH threads & 1/2"-20 RH threads Pinion - 35 spline shaft - Tooth count 10 - 1"-14 RH threads Note 35 Spline Pinions Require Capable Pinion Supports Will Not Fit OEM Or Daytona Style Supports Unsure about your application? Please contact a Strange Sales Associate to discuss your vehicle INSTALLATION KITS Using Tapered Bearing Pinion Support HD Pro & Drag race........ R5238 / R5238WR Ultra & Billet cases.... R5238UC / R5238UCR Using Ball Bearing Pinion Support HD Pro & Drag Race...... R5238B / R5238BR Ultra & Billet cases... R5238UCB / R5238UCBR
  • Designed For Drag Racing Only Pro Gears may be necessary when tooth breakage occurs with Standard gear sets Produced from a softer material, the teeth can flex as opposed to crack and break The life expectancy can vary anywhere from 15 to 300 runs depending on the vehicle If a Standard gear provided acceptable life, a Pro gear may not be the right choice Machined From 9310 Forged Steel Heat Treated to Optimize Material Properties Matched Ring & Pinion Set Ring Gear - 9" OD - Tooth count 35 - 10 bolt holes in each bolt size - 7/16"-20 RH threads & 1/2"-20 RH threads Pinion - 35 spline shaft - Tooth count 9 - 1"-14 RH threads Note 35 Spline Pinions Require Capable Pinion Supports Will Not Fit OEM Or Daytona Style Supports Unsure about your application? Please contact a Strange Sales Associate to discuss your vehicle INSTALLATION KITS Using Tapered Bearing Pinion Support HD Pro & Drag race........ R5238 / R5238WR Ultra & Billet cases.... R5238UC / R5238UCR Using Ball Bearing Pinion Support HD Pro & Drag Race...... R5238B / R5238BR Ultra & Billet cases... R5238UCB / R5238UCBR
  • Designed For Drag Racing Only Pro Gears may be necessary when tooth breakage occurs with Standard gear sets Produced from a softer material, the teeth can flex as opposed to crack and break The life expectancy can vary anywhere from 15 to 300 runs depending on the vehicle If a Standard gear provided acceptable life, a Pro gear may not be the right choice Machined From 9310 Forged Steel Heat Treated to Optimize Material Properties Matched Ring & Pinion Set Ring Gear - 9" OD - Tooth count 35 - 10 bolt holes in each bolt size - 7/16"-20 RH threads & 1/2"-20 RH threads Pinion - 35 spline shaft - Tooth count 9 - 1"-14 RH threads Note 35 Spline Pinions Require Capable Pinion Supports Will Not Fit OEM Or Daytona Style Supports Unsure about your application? Please contact a Strange Sales Associate to discuss your vehicle INSTALLATION KITS Using Tapered Bearing Pinion Support HD Pro & Drag race........ R5238 / R5238WR Ultra & Billet cases.... R5238UC / R5238UCR Using Ball Bearing Pinion Support HD Pro & Drag Race...... R5238B / R5238BR Ultra & Billet cases... R5238UCB / R5238UCBR
  • Designed For Drag Racing Only ISOTROPIC SUPERFINISHED GEAR SET Process removes machining marks and produces a smooth finish • Reduces friction • Eliminates break-in • Increases durability • Improves oil retention • Diminishes heat generation & gear noise Machined From 9310 Forged Steel Heat Treated to Optimize Material Properties Matched Ring & Pinion Set Ring Gear - 9" OD - Tooth count 35 - 10 bolt holes in each bolt size - 7/16"-20 RH threads & 1/2"-20 RH threads Pinion - 35 spline shaft - Tooth count 9 - 1"-14 RH threads Note 35 Spline Pinions Require Capable Pinion Supports Will Not Fit OEM Or Daytona Style Supports Unsure about your application? Please contact a Strange Sales Associate to discuss your vehicle INSTALLATION KITS Using Tapered Bearing Pinion Support HD Pro & Drag race........ R5238 / R5238WR Ultra & Billet cases.... R5238UC / R5238UCR Using Ball Bearing Pinion Support HD Pro & Drag Race...... R5238B / R5238BR Ultra & Billet cases... R5238UCB / R5238UCBR
  • Designed For Drag Racing Only Pro Gears may be necessary when tooth breakage occurs with Standard gear sets Produced from a softer material, the teeth can flex as opposed to crack and break The life expectancy can vary anywhere from 15 to 300 runs depending on the vehicle If a Standard gear provided acceptable life, a Pro gear may not be the right choice Machined From 9310 Forged Steel Heat Treated to Optimize Material Properties Matched Ring & Pinion Set Ring Gear - 9" OD - Tooth count 35 - 10 bolt holes in each bolt size - 7/16"-20 RH threads & 1/2"-20 RH threads Pinion - 35 spline shaft - Tooth count 9 - 1"-14 RH threads Note 35 Spline Pinions Require Capable Pinion Supports Will Not Fit OEM Or Daytona Style Supports Unsure about your application? Please contact a Strange Sales Associate to discuss your vehicle INSTALLATION KITS Using Tapered Bearing Pinion Support HD Pro & Drag race........ R5238 / R5238WR Ultra & Billet cases.... R5238UC / R5238UCR Using Ball Bearing Pinion Support HD Pro & Drag Race...... R5238B / R5238BR Ultra & Billet cases... R5238UCB / R5238UCBR
  • Designed For Drag Racing Only Pro Gears may be necessary when tooth breakage occurs with Standard gear sets Produced from a softer material, the teeth can flex as opposed to crack and break The life expectancy can vary anywhere from 15 to 300 runs depending on the vehicle If a Standard gear provided acceptable life, a Pro gear may not be the right choice Machined From 9310 Forged Steel Heat Treated to Optimize Material Properties Matched Ring & Pinion Set Ring Gear - 9" OD - Tooth count 37 - 10 bolt holes in each bolt size - 7/16"-20 RH threads & 1/2"-20 RH threads Pinion - 35 spline shaft - Tooth count 9 - 1"-14 RH threads Note 35 Spline Pinions Require Capable Pinion Supports Will Not Fit OEM Or Daytona Style Supports Unsure about your application? Please contact a Strange Sales Associate to discuss your vehicle INSTALLATION KITS Using Tapered Bearing Pinion Support HD Pro & Drag race........ R5238 / R5238WR Ultra & Billet cases.... R5238UC / R5238UCR Using Ball Bearing Pinion Support HD Pro & Drag Race...... R5238B / R5238BR Ultra & Billet cases... R5238UCB / R5238UCBR
  • Designed For Drag Racing Only Pro Gears may be necessary when tooth breakage occurs with Standard gear sets Produced from a softer material, the teeth can flex as opposed to crack and break The life expectancy can vary anywhere from 15 to 300 runs depending on the vehicle If a Standard gear provided acceptable life, a Pro gear may not be the right choice Machined From 9310 Forged Steel Heat Treated to Optimize Material Properties Matched Ring & Pinion Set Ring Gear - 9" OD - Tooth count 37 - 10 bolt holes in each bolt size - 7/16"-20 RH threads & 1/2"-20 RH threads Pinion - 35 spline shaft - Tooth count 9 - 1"-14 RH threads Note 35 Spline Pinions Require Capable Pinion Supports Will Not Fit OEM Or Daytona Style Supports Unsure about your application? Please contact a Strange Sales Associate to discuss your vehicle INSTALLATION KITS Using Tapered Bearing Pinion Support HD Pro & Drag race........ R5238 / R5238WR Ultra & Billet cases.... R5238UC / R5238UCR Using Ball Bearing Pinion Support HD Pro & Drag Race...... R5238B / R5238BR Ultra & Billet cases... R5238UCB / R5238UCBR
  • Designed For Drag Racing Only Pro Gears may be necessary when tooth breakage occurs with Standard gear sets Produced from a softer material, the teeth can flex as opposed to crack and break The life expectancy can vary anywhere from 15 to 300 runs depending on the vehicle If a Standard gear provided acceptable life, a Pro gear may not be the right choice Machined From 9310 Forged Steel Heat Treated to Optimize Material Properties Matched Ring & Pinion Set Ring Gear - 9" OD - Tooth count 37 - 10 bolt holes in each bolt size - 7/16"-20 RH threads & 1/2"-20 RH threads Pinion - 35 spline shaft - Tooth count 9 - 1"-14 RH threads Note 35 Spline Pinions Require Capable Pinion Supports Will Not Fit OEM Or Daytona Style Supports Unsure about your application? Please contact a Strange Sales Associate to discuss your vehicle INSTALLATION KITS Using Tapered Bearing Pinion Support HD Pro & Drag race........ R5238 / R5238WR Ultra & Billet cases.... R5238UC / R5238UCR Using Ball Bearing Pinion Support HD Pro & Drag Race...... R5238B / R5238BR Ultra & Billet cases... R5238UCB / R5238UCBR
  • Designed For Drag Racing Only ISOTROPIC SUPERFINISHED GEAR SET Process removes machining marks and produces a smooth finish • Reduces friction • Eliminates break-in • Increases durability • Improves oil retention • Diminishes heat generation & gear noise Machined From 9310 Forged Steel Heat Treated to Optimize Material Properties Matched Ring & Pinion Set Ring Gear - 9" OD - Tooth count 37 - 10 bolt holes in each bolt size - 7/16"-20 RH threads & 1/2"-20 RH threads Pinion - 35 spline shaft - Tooth count 9 - 1"-14 RH threads Note 35 Spline Pinions Require Capable Pinion Supports Will Not Fit OEM Or Daytona Style Supports Unsure about your application? Please contact a Strange Sales Associate to discuss your vehicle INSTALLATION KITS Using Tapered Bearing Pinion Support HD Pro & Drag race........ R5238 / R5238WR Ultra & Billet cases.... R5238UC / R5238UCR Using Ball Bearing Pinion Support HD Pro & Drag Race...... R5238B / R5238BR Ultra & Billet cases... R5238UCB / R5238UCBR
  • Designed For Drag Racing Only Pro Gears may be necessary when tooth breakage occurs with Standard gear sets Produced from a softer material, the teeth can flex as opposed to crack and break The life expectancy can vary anywhere from 15 to 300 runs depending on the vehicle If a Standard gear provided acceptable life, a Pro gear may not be the right choice Machined From 9310 Forged Steel Heat Treated to Optimize Material Properties Matched Ring & Pinion Set Ring Gear - 9" OD - Tooth count 30 - 10 bolt holes in each bolt size - 7/16"-20 RH threads & 1/2"-20 RH threads Pinion - 35 spline shaft - Tooth count 7 - 1"-14 RH threads Note 35 Spline Pinions Require Capable Pinion Supports Will Not Fit OEM Or Daytona Style Supports Unsure about your application? Please contact a Strange Sales Associate to discuss your vehicle INSTALLATION KITS Using Tapered Bearing Pinion Support HD Pro & Drag race........ R5238 / R5238WR Ultra & Billet cases.... R5238UC / R5238UCR Using Ball Bearing Pinion Support HD Pro & Drag Race...... R5238B / R5238BR Ultra & Billet cases... R5238UCB / R5238UCBR
  • Strange Rear End

    Strange builds rear housings for all dragster classes

    Strange Rear End
  • Cobra Jet Program

    Strange builds the complete 9in rear housing for Ford's Cobra Jet Mustangs

    Cobra Jet Program
  • Mopar Drag Pack

    Strange builds the rear housings for the Mopar Drag Pack Program

    Mopar Drag Pack
  • Top Fuel Dragsters

    NHRA Top Fuel Dragsters rely on Strange to put eight thousand HP to the ground

    Top Fuel Dragsters
  • NHRA Funny Cars

    Strange manufactures many parts for Funny Cars

    NHRA Funny Cars
  • COPO Camaro

    Strange builds the complete rear housing for the GM COPO Camaro Program

    COPO Camaro
Drag Racing T-Shirt

Strange Oval

  • Strange Rear End

    Strange builds rear housings for all dragster classes

    Strange Rear End
  • Cobra Jet Program

    Strange builds the complete 9in rear housing for Ford's Cobra Jet Mustangs

    Cobra Jet Program
  • Mopar Drag Pack

    Strange builds the rear housings for the Mopar Drag Pack Program

    Mopar Drag Pack
  • Top Fuel Dragsters

    NHRA Top Fuel Dragsters rely on Strange to put eight thousand HP to the ground

    Top Fuel Dragsters
  • NHRA Funny Cars

    Strange manufactures many parts for Funny Cars

    NHRA Funny Cars
  • COPO Camaro

    Strange builds the complete rear housing for the GM COPO Camaro Program

    COPO Camaro