Output Side-Gear
Replace worn differential gearing with the CCC Parts SPX127645 Output Side-Gear. Built from hardened steel, this gear restores correct side-gear engagement inside Eaton/Spicer DS/DA/DD344/404/405/454 forward axle differentials used on many heavy-duty trucks prior to June 2008. With 34 inner splines and 14 outer teeth, it helps keep power delivery smooth and reduces driveline noise. Available through Wofford Truck Parts for dependable, OEM-style fit. Ideal for overhauls and routine axle service.
$66.09
Specifications
The SPX127645 Output Side-Gear from CCC Parts is an aftermarket replacement for the OEM Eaton/Dana-Spicer 127645 differential side gear. It is engineered for the DS404 series and related DA/DD344/405/454 forward drive axles, specifically versions produced before June 2008. Machined from high-strength steel and finished for corrosion resistance, the gear features a 34-spline inner bore and 14-tooth outer profile to mesh correctly with spider gears. Installing a fresh side gear during a differential rebuild helps maintain correct backlash, improve traction balance between axle shafts, and extend carrier life. Sold by Wofford Truck Parts.
Weight
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