Synergy Manufacturing 8561-02 Dodge AAM 9-1/4" Axle Lower C-Gusset Kit, 10-12 (Lower only) Synergy Dodge AAM 9-1/4" Axle C-gusset kit Designed to be welded to the front C-yokes of the Dodge AAM 9-1/4" axle Laser cut & CNC formed from high strength 3/16" steel