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Dana 30 Yukon Zip Locker - 30 Spline (3.73 & Up)

Sku: YZLD30-4-30

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Part Number: YZLD30-4-30
Brand: Yukon Gear & Axle

The Yukon Zip Locker for Dana 30 with 30 spline is the latest in on-demand traction with an air-operated design that allows you to switch from an open differential to a full locked spool, giving you complete control over your traction. Selectable lockers are ideal for multi-purpose vehicles that see daily driving, but also need maximum performance and traction for full throttle weekend adventures. When it comes to strength and durability, the Zip locker has it covered with a forged case and 8620 internals.

Yukon backs up it Zip Locker with a 6 year warranty AND 2 year $2,000 collateral damage warranty.

Yukon Zip Lockers are compatible with many popular air delivery systems.


Assembled in the USA.


Application Axle Shafts Gear Ratio Tech Notes
Dana 30

30 Spline 3.73 & Up - Drilled for 7/16" ring gear bolts. If you are using
an application with 3/8" ring gear bolts, please purchase
10 of YSPBLT-027 to sleeve the ring gear bolts.
- Requires SK 30214 carrier shims.

Optional Next Generation Rear 40 Spline Assembly.18 months of design, engineering and testing, resulted in the industries strongest 40 spline rear assembly. The design completed rigorous FEA testing and analysis.
- Forged chromolyspindles, hubs, and axle shafts
- Forged spindles have 4x more yield strengththan 35 spline spindles
- Hubs with over 80,000 psi yield strength to match the spindles
- Tone rings integrated into the hub
- Forged 4340 chromoly 40 spline axle shafts that are 55% strongerthan 4340 35 spline axle shafts

Fusion Elite Kingpin 60 Front Axle Standard Features:

  • 72" width for ideal steering geometry and tire clearance when running 40" tires. Other width available or call for custom width.
  • High clearance center section with custom low profile fabricated differential cover
  • Genuine Made in the USA Spicer® 10.1" (256 mm) ring and pinion gear
  • 3.5" diameter x 7/16" wall axle tubes
  • Lifetime Warranty US Made Chromoly axle shafts with 1480 solid u-joints
  • Massive, race inspired Kingpin inner knuckle Cs and outer knuckles, no ball joints to wear out
  • Fully machined springless steering arm attached with 6 ARP Studs
  • Steering arm upgrades available for full hydro or virtually any application
  • 1/4" plate axle bracketry designed to be the strongest in its class
  • 8 x 6.5 bolt pattern
  • Massive 13.25" brake rotors and dual piston calipers
  • Yukon Hardcore locking hubs