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VAL RS4043363941

VALLEY REAR DIFFERENTIAL RS404

This is a remanufactured rear-rear differential carrier assembly for Dana Spicer RS404 tandem axles, commonly found on Class 8 heavy-duty trucks. It replaces a worn or damaged differential in the rear drive axle of a dual‑axle setup, restoring proper torque distribution and power delivery. The unit is pre‑set with a 3.36:1 gear ratio and accepts 41‑spline axle shafts, matching the original RS404 specifications. Because it is remanufactured, it offers a cost‑effective alternative to a brand‑new OEM carrier while still meeting performance requirements for linehaul, dump, and heavy‑haul applications.