4 0 Eaton 17221 Differential Part Newly Listed Contact for price Ring and Pinion for Eaton 17221 6.50 Ratio, Ring Gear# 66852, Pinion# 66842 ConditionUsedStock Number4537513 MLS Number13890049CategoryDifferential Misc. Parts Last Updated10/15/2025 LocationFresno, CA, US Sold ByGarabedian Equipment (855) 794-___ SHOWNUMBERCall Seller Email Seller Save More Info