Ford 9" 4.29 Pro Gear with 35 Spline Pinion
Richmond Gear - Produced in Italy

 
Designed Specifically For Drag Racing

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″ O.D.
• 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

35 Spline Pinions Require Capable Pinion Supports
Will Not Fit OEM Or Daytona Style Supports

Installation Kit For Tapered Bearing Pinion Support
HD Pro & Drag race – R5238 / R5238WR
Ultra & Billet cases – R5238UC / R5238UCR

Installation Kit For Ball Bearing Pinion Support
HD Pro & Drag Race – R5238B / R5238BR
Ultra & Billet cases – R5238UCB / R5238UCBR