View 1 Photo View 0 Videos Meritor-Rockwell SQHP Front Differential 3.90 Ratio 41 Spline, Part # QAR 3.90 $595 USD SQHP FRONT 3.90 RATIO INSPECTED T.O. 90 DAY WARRANTY - Differential Make: Meritor/Rockwell - Differential Model: SQHP - Clutch Housing Size: NA - Differential Make (Front): Meritor/Rockwell ... ConditionUsedPart NumberQAR 3.90Stock Number54121 MLS Number10028727CategoryDifferential Misc. Parts Last Updated5/14/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info