306S-223 Eaton Detroit Locker No-Spin Assy | Dana DST40, RST40 | Genuine OEM

306S-223 Eaton Detroit Locker No-Spin Assembly – Dana DST40 / RST40 | Genuine OEM

The 306S-223 Eaton Detroit Locker (No-Spin) is a Genuine OEM differential locker engineered for Dana DST40 and RST40 axles. Built for severe-duty fleets and vocational use, it provides automatic, full-locking traction with 2.120" – 41-spline axle gear interface.

Features

• Locker Type: Detroit Locker / No-Spin (automatic, positive locking)
• Axle Interface: 2.120" diameter – 41 spline
• Applications: Dana DST40 and RST40 axles
• Build Quality: Genuine OEM Eaton / TracTech / Detroit Locker components
• Use Case: Heavy-duty on/off-highway traction and durability

Specifications

• Part Number: 306S-223
• Manufacturer: Eaton / TracTech / Detroit Locker
• Axle Gear Size: 2.120" – 41 spline
• Condition: New, Genuine OEM (may ship in OE or plain packaging)

Internal Components

• Cross: 72151
• Clutch: 66960
• Axle Gears: 68818

What’s Included

• (1) Complete Detroit Locker No-Spin Assembly — 306S-223
• Packaging: Original manufacturer or plain box

Fitment Notes

• For Dana DST40 / RST40 axles
• Verify axle model and spline specification 2.120" – 41 prior to ordering
• Professional setup recommended; set backlash/contact per axle service manual

Image Disclaimer

Product images may be representative only; actual unit may vary by supplier lot or configuration.

Warranty

Sold as-is; no warranty expressed or implied.

Heavy-Duty Solutions | Built to Perform. Trusted to Last.