• Improves appearance by moving the tires/wheels outboard, closer to the wheel opening.
• Increases cornering grip. A basic engineering fact: All else being equal, widening the track increases the car's grip, allowing it to corner faster.
• Makes your tire/wheel combination appear wider by moving them out to the edge of the wheel opening.

• Includes lug nuts to bolt to the stock Mustang wheel studs.
• Your wheel mounts to the spacer with your lug nuts.
• Hub-centric: The raised pilot aids centering of the wheel during installation.
• Precision CNC-machined from aluminum alloy for perfect balance and parallelism.

Fits

• 1994-2014 Mustang
• 1979-1993 Mustang converted to 5-lug by installing SN95 hubs and axles

Does NOT fit

• 2015+ Mustangs
• SVO Mustang front rotors
• Fox 5-lug rotors sourced from Lincoln, such as these. MM's slip-on non-hubcentric wheel spacers do fit those 5-lug rotors.
• Wheel studs longer than stock.

Notes
Your Mustang's stock wheel studs may be longer than the thickness of the 25mm and 30mm wheel spacers, causing the ends of the studs to protrude past the wheel mounting face of the spacer. If so, the ends of your Mustang's wheel studs may need to be trimmed slightly shorter for wheel clearance. Check your wheels:

• Many wheels have a recess between each lug hole that will accommodate any excessive length of stock studs that protrude past the wheel mounting surface of this spacer.
• If your wheels do not have such recesses, you will need to trim the end of your Mustang's wheel studs. Cut just enough off the end of each wheel stud to ensure it does not protrude past the outboard surface of the spacer. The wheel's mounting face must rest flat against the face of the spacer, not against the ends of protruding wheel studs.

These wheel spacers have a center bore diameter of approximately 2.77". This is the standard diameter for a Ford 5-lug disc brake hub and axle. If your axles have a hub pilot smaller than this, these wheels spacers will not be hubcentric with them.

Why don't these spacers fit my 2015+ Mustang?

1. 2015+ Mustangs are fitted with 14mm diameter wheel studs, not the 1/2" studs of previous years. The lug nuts included with the spacers are 1/2", not 14mm.
2. The S550 Mustang hub pilot has different dimensions, and will not fit the pilot hole of these spacers.

Are wheel spacers safe?
Yes. When properly designed and installed they are just as safe as wheels installed without spacers.

Will wheel spacers cause my wheel studs to bend?
No. The load from a wheel is transferred to the axle/hub through the friction of the clamped joint, not through the wheel stud. A wheel stud can only bend if the lug nuts are not properly torqued, in which case the wheel is about to fall off anyway. See the Tech tab for more info.

I need this spacer thickness in a slip-on spacer. What can I do?

• Remove the wheel studs from this spacer and mount it on your long wheel studs as a slip-in spacer.
• Longer wheel studs are required when this spacer is modified to use as a slip-on spacer.
• You must check the amount of wheel stud thread engagement on your car to ensure that at least 6 threads are fully engaged in the lug nut when installing this as a wheel spacer modified to slip onto long studs.
• Open-ended lug nuts are usually required with long wheel studs.

These wheel spacers have a center bore diameter of approximately 2.77". This is the standard diameter for a Ford 5-lug disc brake hub and axle. If your axles have a hub pilot smaller than this, these wheels spacers will not be hubcentric with them.

Converting the metric spacer thickness to inches:

Wheel spacer Tech; Keeping the wheels on.

You can read Maximum Motorsports' Bolt-on wheel spacer installation instructions before purchase.