The PSC 4 Spline Pitman arm is designed to work with the 4 spline sector shaft in the PSC Steering Box. This is a perfect upgrade for your 2001 to 2010 Duramax truck with a PSC Steering Gearbox.
•Cold headed 30MM full ball stud - eliminates binding between pitman and idler arm
•Induction through hardened and annealed SAE 4140 stud provides extreme wear resistance
•Heat treated steel race
•Powder metal upper bearing
•SAE 1541 forged and heat treated forging with increased size for maximum strength
•Relocated grease fitting for easy access