1970 Mustang Bolt Pattern

Your source for 1970 Mustang bolt pattern info—from stud size and offset to the tools you’ll need to measure for yourself.
Written by Kara Vanderbeek
Reviewed by Melanie Reiff
A 1970 Mustang bolt pattern is 4x4.5 or 4 on 4.5, meaning each wheel has four bolts forming a circle 4.5 inches in diameter. 
Commonly recognized as the “Ultimate Classic Car'', Ford Mustangs are known for their exterior resemblance to sports cars. You can take your 1970 Ford Mustang to the next level with an added mod to your wheels or a fresh set of rims. You’ll just need to know your Mustang’s bolt pattern!
If you’re new to the bolt pattern business, we’ve got you covered.
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1970 Ford Mustang bolt pattern

While many
Ford lug patterns
are expressed as 5x4.5, the 1970 Mustang’s bolt pattern is 4X4.5. In other words, your Mustang’s wheels each have 4 lugs set in a circle 4.5 inches in diameter. The expression below signifies each measurement:
# of bolts x diameter of the circle they form
Knowing your Mustang’s bolt pattern is certainly helpful, but if you’re looking to swap out of your wheels, you’ll need to know a few other specifications of your vehicle. Check out the measurements below for all the information you’ll need to change your wheels: 
  • Factory wheel size: 14” to 16” 
  • Stud size: ½”x20mm
  • Offset: 15 to 25 mm
  • Center bore: 63.4 mm
  • Wheel tightening torque: N/A

How to measure your 1970 Ford Mustang’s bolt pattern

The specifications outlined above should provide enough information to get your wheels swapped out, but if you want to learn how to measure your bolt pattern yourself, we’ve got you covered!
Before you get started, make sure you have a measuring tape or a ruler. Choose a bolt on your wheel and measure from the outer edge of the lug hole to the center of the opposite bolt
This measurement will give you your diameter. Next, count the number of bolts on the wheel. Put both numbers into the expression above, and that’s your bolt pattern!

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The bolt pattern on a 1970 Ford Mustang 4x4.5—four bolts in a 4.5-diameter circle.
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