Product Description
ARP 2015+ Ford Mustang M14 1in Over Stock Length Wheel Stud Kit
Front or Rear
Includes qty5 studs
Open ended lug nuts required!
1" longer than stock for base S550 Mustang studs. This allows for spacers to be run on square street and aggressive track wheel fitments.
Extended length wheel studs fit 2015 Mustang, 2016 Mustang, 2017 Mustang, 2018 Mustang, 2019 Mustang, 2020 Mustang, 2021 Mustang, 2022 Mustang. Includes Coyote and GT350 models. GT350R comes standard with "extended" studs.
From ARP:
ARP wheel studs manufactured from premium grade heat treated 8740 chrome moly steel, nominally rated at 190,000 psi tensile strength and cadmium plated for extra durability. These studs are able to easily handle the tremendous acceleration, shock loads and lateral forces found in racing applications.
Knurl Diameter: 0.625˝
UHL: 3.435˝
Knurl Length: 0.400˝
Nose Length: 0.435˝
Thread Size: M14 x 1.50
Wheel Stud Hole Size - Cast Iron/Steel Hub: 0.609˝ - 0.619˝
Cast Iron/Steel Hub Drill Bit Size (actual dim.): 39/64˝ (0.609˝)
Wheel Stud Hole Size - Aluminum Hub: 0.609˝ - 0.615˝
Aluminum Hub Drill Bit Size (actual dim.): 39/64˝ (0.609˝)
Wheel Stud Hole Sizes and Proper Interference Fit for the Knurl
Our OEM replacement wheel studs are designed to press-fit into the original hole in the OEM hub (preferably with a hydraulic press, as using a nut can create problems).
If you are using one of our kits in another application, the hole should be checked to ensure it falls within the correct tolerance to allow for the proper amount of interference, so that the stud won’t spin in the hole. For steel and cast iron hubs, the hole should be 0.006-0.016˝ smaller than the Knurl Diameter. For aluminum hubs, the hole should be 0.010-0.016˝ smaller than the Knurl Diameter. As a courtesy, we have provided the closest standard drill size that will provide a hole in that range.
If the hole is larger than the tolerance listed for the material, then the studs should not be used with that hub. The interfernce fit will not be tight enough and the stud could spin in the hole.
If you need to drill out the holes in your hub, the holes must be kept perpendicular to the face of the hub. If you do not have a fixture that clamps to the hub to guide the drill straight, use a setup similar to the one in the image at below. (A hand drill will not produce satisfactory results.)
All ARP wheel studs have an underhead radius. Each hole must be chamfered 0.025˝ to clear the underhead radius and prevent stud failure.
