Torque arm problems in Driveline and Suspension Posted September 5 2 hours ago, Mack Technician said: 25095125 $3.66 I leaned on Manders Diesel. Those guys are the best informed Mack parts men I’ve met. They’re a Mack dealership and a salvage yard so the guys at the counter have all the crossover compatibilities in their heads. There was no picture of it in the system. Bill found it listed though as a “qty 1” item on the diff breakdown. Thanks for getting that part number dor me. That explains why the parts guy missed it.