View 0 Photos View 0 Videos Rockwell QHR Differential Housing (Single or Rear) Low Air Leaf 3.90 Ratio, Used Contact for price Part type: Differential Housing (Single or Rear) - Used Low Air Leaf housing with Rockwell QHR 3.90 ratio, Core Charge: 0.00 ConditionUsedFits To Make(s)ROCKWELLFits To Model(s)QHRStock Number542004 MLS Number13152106CategoryMiscellaneous Truck Parts Last Updated3/28/2026 LocationPhoenix, AZ, US Sold ByAmerican Truck Sales & Salvage (844) 882-___ SHOWNUMBERCall Seller Email Seller Save More Info