Industrial Injection Dodge Common Rail Gorilla Girdle For 03 and Up Cummins 14mm With ARP XL Main Studs - PDM-060232003+ Common Rail 14Mm Gorilla Girdle W Arp Xl Main Studs This kit includes: 1 Gorilla Girdle 14 top spacers (Large hole) 12 bottom spacers (small hole) 1 rear main spacer bar 2 rear main stud nuts (12 point) 12 main stud nuts (Nylock) Before you start. First check the torque on the main studs. 14mm A1, 150 ft lbs Requires Stamped Oil Pan Note: On certain 6. 7L Cummins engines that come factory with a windage tray instead of a factory girdle you will