Measuring for Wheel Fitment: The Ultimate Guide

It's a question we hear constantly, "What size wheels will fit my car?" Without measuring, it's impossible to say! Even the same Mustang, from the same year, may have variations in the amount of room available. This means you'll need to bust out the tape measure and do some basic math to figure out exactly what wheels will fit your car.
In this video, Mike Maier will walk you through what to measure and how to do the math to figure out your backspace, frontspace, wheel diameter, and everything else you need to figure out exactly what wheels will fit your Mustang (or any car for that matter).
For more helpful tech tips, visit mikemaierinc.com

[@JasonOBrienThinksHeCan]

Greatest education I have received in years. Thank you

[@leosun8469]

Great technical video- thanks for taking the time to make and post this, Mike.
When the time comes to buy our suspension parts for our ‘67 Mustang, you’ll be getting a call.👍🏻

[@MURD3R3D]

Thank you so much for this video. I was pulling my hair out trying to understand how people widebody a car with fender flares and use an explorer rear end and get perfect fitment. This is awesome thank you so much

[@J_B86]

Great videos Mike. Very informative and clear instruction.

[@paulbrice6549]

Great explanation Mike, best advice I have received in wheel fitment on these cars in years. #MikeMaierInc your products and customer service is top notch!

[@MikeMaierInc]

Right on!

[@TheEdge549]

This is some good stuff.

[@ryanjamison8905]

What tire diameter do you suggest ?

[@Mpcoluv]

One thing you didn't mention is that these old mustangs were not precise. My car's body seems to be skewed 3/16" to the passenger side. So I don't have symmetrical measurements from the hub to fender lip from side to side. Great Video however.

[@MikeMaierInc]

That's why it's so important to take as many measurements as possible. These old cars were far from consistent from the factory and 50 years later who knows what's happened along the way.

[@arcorob]

Sir ! Love the videos , your products and especially your 66 Mustang...lol...But I think you had BACKSPACE backwards. For that tire (say 10.5) to fit properly you need NEGATIVE back space as show here smhttp-ssl-56487.nexcesscdn.net/media/wysiwyg/diagrams/xwheeloffsetbackspacing.png.pagespeed.ic.97hdBif4jO.png - Its very important to note NEGATIVE vs POSITIVE backspace - In many cases, old school mustangs use about 4.5 " backspace though that can depend a bit

[@RustysMustangGarage]

Robert, I believe Mike is correct with his explanation. Backspace is measured from the back of the wheel to the back of the wheel hub (center), Backspace can never be negative. I think you have confused Backspace with Offset. Offset is measured from the center, so a 0" Offset wheel has the wheel hub at the the center of the wheel. A positive offset puts this hub closer to the outside of the wheel, and negative offset puts the hub closer to the inside of the wheel.

[@alexanderthornton147]

Is measuring the rear of the mustang says pull measurement from his rear... Pun