Browse Spicer S21-140 Rear Differentials for sale on MyLittleSalesman.com. Compare prices, photos, and seller details across 9 listings. Spicer S21-140 Rear Differential pricing ranges from $1,900 to $1,900 based on recent marketplace data. Filter by condition, price, or year to find the right Spicer S21-140 Rear Differential.