Ring and Pinion
Housed in the middle of the rear axle assembly of many cars and trucks are the differential and ring and pinion gears. These components change both the rotational direction and speed between the driveshaft from the transmission and the axles. The differential determines which axle(s) will be powered by the driveshaft rotation (depending on the differential design, such as open or posi-traction) and keeps the ring gear in a fixed location to properly mesh with the pinion gear. The gear ratio is the number of (larger) ring gear teeth divided by the number of (smaller) pinion gear teeth. The numerically higher the gear ratio is, the quicker acceleration is but at the cost of a lower vehicle top speed (think of starting and remaining in first gear on a 10-speed bicycle). On the contrary, a numerically lower gear ratio results in slower acceleration but with a higher top speed. (think of starting in and staying with third gear on a 10-speed bicycle). Over time, from wear and use, or due to being overpowered by increased power, ring and pinions will degrade and fail, requiring replacement.
When selecting a gear ring and pinion kit, the first step is to confirm the year, make, model, and engine of the vehicle. Next, confirm the ring gear diameter and number of differential mounting bolts. In addition, confirm the number of splines on the pinion gear. Finally, confirm the gear ratio needed, whether the same or different. From the remaining compatible gear sets, choose the option that best fits your application and budget.
JEGS offers a very large selection of ring and pinion gears to choose from, offered by the best drivetrain brands such as JEGS, and many more. Each ring and pinion set is manufactured with high-quality materials and assembly to provide long-lasting performance your vehicle deserves.
Liberty Automotive AAM115B1001 Ring & Pinion w/Installation Kit Bundle for 2010-2019 GM, Ram 2500, 3500 Trucks 11.5 AAM Differentials [3.73 Ratio]
- 3.73 Ratio Ring & Pinion
- Complete Master Installation Kit
Dana Spicer Spicer Differential Ring & Pinion Kit Dana 30 Tj 3.73 Ratio D30-3.73tj W/bearing Kit
Yukon Gear USA Standard ZG D44-373 Ring & Pinion Replacement Gear Set, For Dana 44, 3.73 Ratio
Speedmaster PCE211.1045 Ford 9" 35 Spline 4.56:1 Ratio Ring and Pinion Gears Set 8620
Includes:
- RTV
- Thread Locker
- Marking Compound
- Brush
- RTV Silicone
- Thread Locker
- Marking Compound
- Brush
Liberty Automotive GM14B1004 Ring & Pinion w/Installation Kit Bundle for 1967-1988 GM Trucks, SUVs 14-Bolt GM Differential [4.11 Ratio]
- 4.11 Ratio Ring & Pinion
- Complete Master Installation Kit
Liberty Automotive GM14B1002 Ring & Pinion w/Installation Kit Bundle for 1967-1988 GM Trucks, SUVs 14-Bolt GM Differential [3.73 Ratio]
- 3.73 Ratio Ring & Pinion
- Complete Master Installation Kit
Liberty Automotive F88B1002 Ring & Pinion w/Installation Kit Bundle for 1983-2010 Ford Vehicles 8.8 Differentials [4.11 Ratio]
- 4.11 Ratio Ring & Pinion
- Complete Master Installation Kit
Includes:
- RTV Silicone
- Thread Locker
- Marking Compound