ARP Rocker Arm Nut - 7/16-20 in Thread - 0.550 in Shank Diameter - 1.200 in Long - Chromoly - Black Oxide - Aluminum Rockers - Set of 16 IH100020 1999-2015 Ford F-150

1999-2015 Ford F-150

Product Description: Suspension Limiter Chain Mount

PairVehicle Applications: Jeep: TJ 1997 - 2006

0 inch Outlaw muffler and a single 3

1998-1999 Ford Econoline Super Duty

ARP Rocker Arm Nut - 7/16-20 in Thread - 0.550 in Shank Diameter - 1.200 in Long - Chromoly - Black Oxide - Aluminum Rockers - Set of 16 IH100020 1999-2015 Ford F-150A rocker arm adjuster that doesn't require special tools and won't work loose. Threads on the heat treated Perma Loc Adjusters are machined exactly perpendicular to the adjuster bottom. a set screw is also machined flush on the bottom. All of these features help eliminate setting valve lash on a regular basis. ARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline.