Home » Ring and Pinion Gear Sets » Ford 9 inch gears » Ford 9″ 4.57 Pro Gear with 35 Spline Pinion US/Strange Gear – Produced in USA

Ford 9" 4.57 Pro Gear with 35 Spline Pinion
US/Strange Gear - Produced in USA


Part Number: RP07990457US

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 32
– 10 bolt holes in each bolt size
– 7/16″-20 RH threads & 1/2″-20 RH threads

– 35 spline shaft
– Tooth count 7
– 1″-14 RH threads

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


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

Order any Gear Set Online and get free delivery and handling on your entire order! UPS Ground Only. Offer excludes truck freight and oversize fees. Valid on online orders shipped in the contiguous United States.


Ford 9″ 4.57 Pro Gear Set Made By US Gear

Additional information

Weight 20.00 lbs