Eaton Nut-Pinion P/N: 126182. We have Eaton differential parts, new in box ready to ship worldwide. For help please call one of our experts!Interchanges:22530EE22530Used in these Dana Spicer models40 Series Single Reduction Tandem Drive AxleDS/RS 340-402 Tandem Drive AxleDS/RS 461, 521, 581, 601 Tandem Drive AxleDS404 / RS404 Tandem Drive AxleDS405 Tandem Drive AxleDSH40 Tandem Drive AxleDSH44 Tandem Drive AxleDSP41 Single Reduction Drive AxleDST40 Tandem Drive AxleDST41 Tandem Drive Axle