ARP Rod Bolt Kit Dodge Cummins 3.9L 4BT 4 Cylinder 721055 The spring ball on your

The spring ball on your extension holds the nut in place

Line Pressure Regulator)

This media is perfect for street and/or track use

Spindle arms have been reamed to a straight hole to accept a 5/8" bolt and rod end

The RZ-70E also features the new DDAIR-SYSTEM providing 360 degree air channeling for ultimate airflow

ARP Rod Bolt Kit Dodge Cummins 3.9L 4BT 4 Cylinder 721055 The spring ball on yourARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, IMSA, NASCAR and NHRA drag racing and marine applications. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Connecting Rod Bolt Kit Pro