USA Standard 10383 (SL D30-4-27-LSD) Features:

The Spartan Helical LSD’s helical-cut worm gears seamlessly funnel torque to the tire with the best grip. Its 10-pinion design is stronger than 6- or 8-pinion units because it has more points of contact to deliver optimal load distribution.

• Fits Dana 30 front differentials
• 27 spline
• 3.73-and-up ratio
• Forged 8620 steel alloy case and internals for superior durability
• Recommended gear oil: Non-synthetic 80W-90 GL-5
• Use of friction modifiers not recommended
• Maintenance free, no worry performance
• Smooth engagement and linear traction
• Grade Type: Performance