Spartan Locker Helical Limited Slip Differential Worm Gear Positraction Dana 30 Front 27 Spline 3.73 & Up (SL D30-4-27-LSD)

Increase the traction capability of your Dana 30 front diff with the Spartan Helical LSD from USA Standard Gear's Spartan Locker brand. This helical gear design provides years of maintenance-free service. When wheel slippage occurs, its pre-loaded worm gears funnel more power to the tire with the best traction. This 10-pinion USA Standard Gear design has a strength advantage over an equivalently sized 6-pinion or 8-pinion unit because it has more points of contact and more surface contact area to deliver optimal load distribution.Compared to other types of limited slip differentials or positraction units, the Spartan Helical LSD provides smoother engagement, quieter operation, and requires no maintenance. Built tough, the Spartan Helical LSD is a fully assembled unit featuring a forged 8620 chromoly case and stout 8620 chromoly alloy internals for superior durability. Whether you’re facing mud, loose gravel, or steep inclines on the trail or slippery snow or rain on the road, the Spartan Helical LSD will ensure you have unrivalled traction and supreme confidence in your vehicle.USA Standard Gear sets the standard for quality OE replacement parts at affordable pricing. USA Standards provides the widest selection of drivetrain replacement parts, including ring & pinions, axles, Perfect Fit driveshafts, transmission and transfer case components, and installation kits, as well as the Spartan Locker – the toughest lunchbox locker on the market. Designed for the general installer and do-it-yourself customer, USA Standard provides unmatched reliability in replacement drivetrain products.

• FITMENT: Dana 30 Front 27 Spline, 3.73+ Ratio
• METALLURGY: Forged 8620 Steel Alloy Case and Internals for Superior Durability.
• SMOOTH TRACTION: Smooth Engagement and Linear Traction
• MAINTENANCE FREE: Maintenance Free, No Worry Performance
• GEAR OIL: Recommended Gear Oil: Use Non-Synthetic 80w-90 gl-5. Use of Friction Modifiers Not Recommended