Browse Eaton-Spicer RS402R370 Rear Differentials for sale on MyLittleSalesman.com. Compare prices, photos, and seller details across 7 listings. Eaton-Spicer RS402R370 Rear Differential pricing ranges from $600 to $1,225 based on recent marketplace data. Filter by condition, price, or year to find the right Eaton-Spicer RS402R370 Rear Differential.