View 4 Photos View 0 Videos Dana-Spicer D40-170P/R40-170 Cutoff for a 2007 Peterbilt 379 Contact for price Spicer 40170 tandem cutoff ratio 3.91, Peterbilt Low Air Leaf suspension. Call for more information. We ship everywhere., Hub Bolts: 10, Ratio: 3.91, Suspension Make: Peterbilt, Suspension... ConditionUsedRear End3.91 ratioFits To Make(s)PeterbiltFits To Model(s)379Will Fit Year(s)2007Stock NumberPT-0904-4 MLS Number14053217CategoryFront & Rear Cutoffs (Clip Cuts) Last Updated12/20/2025 LocationYork, ON, Canada Sold ByLomoca Inc. (833) 835-___ SHOWNUMBERCall Seller Email Seller Save More Info