Richmond Gear 79-0078-1 5.00 Ratio Ring & Pinion
Product description
This ring and pinion set delivers heavy-duty gear pairing for Ford 9 inch differentials, focused on durable performance for towing, racing, or high-torque builds. It offers a 5.00 gear ratio that helps increase axle torque for acceleration or load carrying, and it comes as a complete 1 pack ready for installation.
Key Points
Manufactured with computer-controlled processes, this Richmond set aims for tight tolerances and consistent tooth geometry to reduce noise and improve meshing during operation. The gears are cut at one-thousandth of an inch precision and then heat treated, which, according to the manufacturer, results in stronger finished parts that resist wear under repeated stress. For enthusiasts and mechanics working on Ford 9 inch housings, this option balances cost and validated manufacturing practices. ⚙️
Expect performance benefits when swapping from a numerically lower ratio to the 5.00 set, as it increases tractive effort and can make heavy loads feel more manageable in low gears. Conversely, consider that a higher numerical ratio may raise engine RPM at highway speeds which could affect fuel consumption in long-distance driving. 🔧
Technical Specifications
- Name: Richmond Gear 79-0078-1 Ring and Pinion Ford 9" 5.00 Ratio Pro Gear 28 Spline
- Application: Ford 9" differential, rear axle
- Ring Gear Diameter: 9 inches
- Gear Ratio: 5.00
- Spline Count: 28 spline
- Pack Quantity: 1 Pack
- Manufacturing Notes: gears cut to 0.001 inch precision and heat treated, extensive testing according to the manufacturer
Usage Recommendations
Installers should verify differential carrier and pinion depth measurements during setup to ensure correct backlash and preload. Proper installation tools and a torque wrench for bearing and pinion nut settings help achieve consistent results and reduce the chance of premature wear. For best outcomes, pair the gears with compatible bearings and seals and follow established break-in procedures after assembly. 🛠️
Consider that these gears are optimized for strength and wear resistance according to the manufacturer, but extreme motorsport environments or continuous high-RPM use may require additional heat management and inspection intervals.