The Eaton axle shaft, part number 128516, is a rear drive axle shaft designed for Eaton DS, DA, DD, RS, RA, and RD series differentials in the 344, 404, 405, and 454 configurations. This shaft carries cross-references across multiple OEM lines: Mack lists it as 2104-128516 and 2719-128516, GMC Truck as 12388170, Freightliner and Volvo both reference it as ETN128516, and Dana/Spicer cross-references it as S-E633 and EH128516. The shaft measures approximately 40.5 inches in length. Sold individually by Pro Gear and Transmission. Call us to confirm proper fit for your specific axle model and ratio.
Features
Fits Eaton DS, DA, DD series 344/404/405/454 differentials
Fits Eaton RS, RA, RD series 344/404/405/454 differentials
Cross-references: Mack 2104-128516 and 2719-128516
Cross-references: GMC Truck 12388170
Cross-references: Freightliner/Volvo ETN128516; Dana/Spicer S-E633
Approximate shaft length: 40.5 inches
Tech Specs
- Length: 40.5 in.
- Cross Reference - Dana/Spicer: S-E633 / EH128516
- Cross Reference - Mack: 2104-128516, 2719-128516
- Cross Reference - GMC Truck: 12388170
- Cross Reference - Freightliner / Volvo: ETN128516
- PAI Industries SKU: 960370
- Sold as: Each
