All-in-one Ford 9″ 3.89 Pro Gear With 35 Spline Pinion Us/strange Gear – Produced In Usa Accessory [XilNFHfz]

Ford 9" 3.89 US Strange Pro Gear with 35 spline pinion

PN : RP07990389US
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

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