Yukon Spartan Helical Locker Dana 30, 27 Spline

When wheel slippage occurs, the Spartan Helical LSD’s pre-loaded worm gears funnel more power to the tire with the best traction. This 10-pinion 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. 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.

Technical Notes: Fits 3.73 and Up gear Ratio, (also 3.45 & Up Ratio on 2018+ Jeep Wrangler JL D30)