View 12 Photos View 0 Videos Dana-Spicer D40-155 Cutoff for a 2020 Peterbilt 579 Contact for price (Used) 2020 Peterbilt 579, COMPLETE TANDEM CUTOFF- Part Number: TBD, Serial Number: U930382861/HN07682197, Make: Spicer, Model: D40-155, Ratio: 2.79, Capacity: 19,000 Lbs, Hub Bolts: 10,... ConditionUsedRear End2.79 ratioFits To Make(s)PeterbiltFits To Model(s)579Will Fit Year(s)2020Stock NumberP-494300 MLS Number14094333CategoryFront & Rear Cutoffs (Clip Cuts) Last Updated5/13/2026 LocationElkton, MD, US Sold ByCRG Heavy Truck Parts (844) 402-___ SHOWNUMBERCall Seller Email Seller Save More Info