Note: Don't see the ratio you need? We are adding new ratios daily, give us a call

Mark Williams Gleason 10” ring and pinion gears are produced 9310 alloy Ring and Pinion are the next step in durable gearing. This series gears have a ground tooth form and are Cold Stabilized, Shot peened and REM isotropic finished. 35 spline input. Requires a case that has clearance for the larger gear and our 47679, 57678 or 57629 pinion support. This is the ultimate solution for the 9” type differentials.

10" pitch diameter, 9.43" physical ring diameter. Requires matching case and pinion front bearing support. Can be used in most 9" housings with extra clearance modifications. All 10" gears have 35 spline input and use 1/2" ring gear bolts

Manufactured from ultra-tough 9310 steel, these gears are specifically engineered for drag racing and competition use where extreme torque loads and high horsepower are the demanded. Unlike street gears, Pro Gears are designed for the strip, trading longevity for the ability to withstand repeated hard launches and shock loading without failure

• 10" ring gear diameter
• 35 spline pinion
• 1.875 Pinion Stem
• 9310 material

Available in the following gear ratios:

• 3.70 Gleason Gear
• 3.89 Gleason Gear
  
• 4.11 Gleason Gear
  
• 4.29 Gleason Gear

We also carry 10" gears from Richmond / Motive: Click Here

Add On Gear Treatments:

• Supra-Fin Polish Ring Gear
• SUBZ - Subzero Treatment for Ring Gear
• PEEN-02 - Shot Peen Ring Gear
• LRG - Lighten Ring Gear

NOTE: 9310 Pro Gears are not intended for street use, their softer composition maximizes shock absorption but results in shorter wear life under constant driving.