Browse Eaton-Spicer RST40R336 Rear Differentials for sale on MyLittleSalesman.com. Compare prices, photos, and seller details across 10 listings. Eaton-Spicer RST40R336 Rear Differential pricing ranges from $950 to $1,420 based on recent marketplace data. Filter by condition, price, or year to find the right Eaton-Spicer RST40R336 Rear Differential.