View 1 Photo View 0 Videos Eaton D46-170P Front Differential for a 2006 Peterbilt 378 $2,995 USD D46-170P GOOD INSPECTED TAKEOUT 3.91 RATIO WILL INSPECT IN OUR GEARSHOP 90 DAY WARRANTY EXCHANGE . SUSPENSION ASSY INVENTORIED SEPERATLY., Core Charge: 1250.00, Ratio: 3.91 ConditionUsedRear End3.91 ratioFits To Make(s)PeterbiltFits To Model(s)378Will Fit Year(s)2006Stock Number11026-1 MLS Number14091635CategoryDifferentials, Front Last Updated1/16/2026 LocationUcon, ID, US Sold ByHolst Truck Parts (833) 541-___ SHOWNUMBERCall Seller Email Seller Save More Info