1 0 Meritor-Rockwell RF21156 Front Differential for a 2012 Peterbilt 587 $1,420 USD Used, good condition, Ratio: 3.42 ConditionUsedRear End3.42 ratioFits To Make(s)PeterbiltFits To Model(s)587Will Fit Year(s)2012Stock NumberP-5 MLS Number12482298CategoryDifferentials, Front Last Updated8/15/2025 LocationBlue Island, IL, US Sold ByDMC Logistics (833) 657-___ SHOWNUMBERCall Seller Email Seller Save More Info