Get next-level traction for your Jeep?! This kit combines the unrivaled grip of a Yukon Zip Locker and the toughness of USA Standard Gear chromoly axles. Controlled from the driver's seat, the Yukon Zip Locker's lightning fast engagement means you can respond to ever-changing trail conditions where a few seconds or a tire rotation can make all the difference. So, bring on those steep hills, unstable ravines, treefall surprises, and jagged rocks. When the unit is disengaged you get the convenience and streetability of an open diff so your rig will also be tame enough for the daily commute. We build the Zip Locker right"¦ a forged steel case and premium alloy internals ensure the Zip Locker will be your trusted sidekick for years to come. USA Standard Gear performance replacement axles feature high tensile strength chromoly construction and advanced heat-treating processes to create an axle that is far tougher than OEM-spec units. USA Standard Gear chromoly axles are built to absorb trail abuse and provide years of dependable service. Their exact-fit design also makes installation easy. This is a serious kit for those in search of serious performance.
Features:
- Fits Dana 30 Front Differential
- Includes two 27 spline, 6.11" outer axles
- Includes 30 spline, 16.6" inner axle
- Includes 30 spline, 32.28" inner axle
- Includes a 3.73-and-up gear ratio Yukon Zip Locker
- Includes Yukon Vacuum Disconnect Block-Off Kit
- Features heavy duty 4340 chromoly axles
- Includes 1310 Series u-joints and hardware
Steel Properties
SAE Grade | Tensile Strength (psi) | Yield Strength (psi) |
1040 | 120,000 | 106,000 |
1050 | 162,000 | 146,000 |
1541H | 181,000 | 164,000 |
4340 | 228,000 | 210,000 |
Note: OEM axles are made from 1040 or 1050 steel. Tensile Strength refers to the point at which the material ruptures. Yield Strength refers to the point where the material takes on a noticeable, permanent deformation.
![](/Images/MoreInfo/doc.png) Additional Resources Torque Specifications & Installation Instructions
![](/Images/MoreInfo/support.png) USA Standard Gear Technical Support If you are having trouble choosing the correct USA Standard Gear part, or experiencing issues during or after installation of this part, USA Standard Gear's technicians are available to help answer your questions.
Phone: 1-866-748-0902 (M-F 6am-4pm PST)
Attention California Customers - Not Applicable
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