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Ships within 48 hours · Estimated delivery Aug 10 - Aug 15
May run as a coil-over setup with #20135 hardware kit and 10-12" tall spring sold separately
Pre-heating is not recommended as collars can lose holding power
– 1/2″-20 RH threads
– Stamped steel plate retains Spirolox against housing end
Ford 9″ 4.57 Pro Gear with 35 Spline Pinion Richmond Gear – Produced in Italy Ford 9 Inch Spool May run as a coil-overFord 9" 4. 57 Richmond Pro Gear with 35 spline pinion Part Number: RPF90457 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
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