Heavy Duty High Performance Ring and Pinion Differential Kit for GM 10 Bolt Rear End Swap 4.11 Ratio Upgrade with 30 Spline Pinion 8.5 Inch Axle Bearing Set Towing Ready Rig Enhancer

Heavy duty 4.11 ratio ring and pinion gear set
✔️ 30 spline pinion, 8.5 inch bearing set, GM 10-bolt ready

This heavy duty differential kit gives you a solid 4.11 gear ratio for heavier loads. You will mount it squarely in a GM ten-bolt rear housing during a swap or rebuild. It works best for towing rigs that need extra torque and reliable street performance.

✅ High performance ring and pinion gears for smooth power transfer
✅ 30 spline pinion handles higher torque under heavy loads
✅ Fits GM ten-bolt axles with 8.5 inch bearing sets

💡 Why is a heavy duty ring and pinion upgrade handy for loaded trucks?

A quality pair delivers consistent pull without burning through gas.
- Thicker steel teeth absorb sudden shocks from packed trailers.
- Sturdy spline counts distribute weight evenly across rough ground.
- Balanced bearing preload keeps the housing cool under strain.