USA Standard Spartan Locker For Dana 44 Diff w/ 30 Spline Axles / Incl. Heavy-Duty Cross Pin Shaft

The Spartan Locker by USA Standard Gear provides reliable traction at a low cost. The Spartan Locker's patent pending design replaces the spider gears in a standard carrier case, does not use the thrust washers, and has a revolutionary spring-and-pin design that makes installation even easier! This style of locker is known as a lunchbox locker because of its compactness. The Spartan Locker features heat-treated 9310 steel internals for enhanced durability. The advantages of utilizing a Spartan Locker are its 100% lock up and affordability, both in initial cost and installation cost. The install is easier on the wallet because the differential does not need to be removed for installation. In fact, some enthusiasts install the unit themselves versus taking it to a shop.

Additional Information

The Spartan Locker is a lunchbox locker that delivers reliable, 100% lockup traction at a low cost. It's design does not use the thrust washers and has a revolutionary spring and pin design that makes installation a snap!

Part Type

Differential Spool

These additional application notes are supplied by the manufacturer and collated from multiple year ranges. Not all of these notes may apply to every year or every variant. Please contact a StreetFX agent for clarification if required.

• Does not fit Jeep JK
• Fits Dana Spicer 44 with 30 spline axles
• Made from 9310 steel for added strength
• Mechanical locker delivers reliable 100% lockup
• Replaces the spiders in a standard carrier case

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Product Details

Product Downloads

#	Document Type	Download
1.	Installation Instructions

Installation guides, warranty details, and other supporting documents are provided by the supplier. In some cases, these files may originate from regions outside your locale, meaning instructions, warranty procedures, and images may not fully align with your specific vehicle or region (e.g., LHD vs. RHD differences, return policies, etc.). If you need clarification, please contact a StreetFX support agent.

Reference Information