SLD30-4-27-LSD Dana 30 Front Helical Limited Slip Differential 27 Spline 3.73 Up
Yukon SLD30-4-27-LSD Compare to 912A585 Truetrac - 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. 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 1 year warranty against Manufacturer defects Technical Notes: Fits 3.73 and Up gear Ratio, (also 3.45 & Up Ratio on 2018+ Jeep Wrangler JL D30)