Drivetrain› Differentials and Rear-End Components
Yukon Gear & Axle
USA Standard Spartan LSD Worm Gear Positraction for Dana 30 Diff w/ 27 Spline 3.73-up Ratio
SKU: Y001 SL D30-4-27-LSD
Easy — 1–2 hours
Description
Part #: SL D30-4-27-LSD
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.
MIA's Description
Fitment
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Specifications
| Brand | Yukon Gear & Axle |
| Part Number | Y001 SL D30-4-27-LSD |
Videos
Spartan Locker Installation Walkthrough
Dana 30 Rebuild Guide Pt.2: Yukon 4.56 Gears, Gear Setup, Powertrax No-Slip Locker
Regearing Dana 30 3.55 to 4.56 Jeep Cherokee Xj Truetrac lsd & Differential rebuild ( locker )
Jeep Dana 30 Ring Gear install and more pinion gear tips #poweraddictscrew #jeepwrangleryj
Dana 30 Eaton Truetrac Differential And Yukon Ring Gear Install / Making setup Bearings / Jeep xj
Buy with Confidence
Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.
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