Coil Spring Tech Articles, Videos, and More

Over the years, we have taught thousands of street rodders and resto-modders the ins-and-outs of cutting coils and Mustang II front-ends.

Become a coil spring master! Browse through hundreds of articles, videos, and answered tech questions below. And if you don't find an answer? We are always happy to help.

All About Ride Height in Leaf & Coil Spring Vehicles

Just because the manufacturer of your ride had their ideas about how she should sit does not mean you have to agree with them. How she sits, whether the factory look, or a stance more to your liking, is for you to decide. What About The Factory Stance? Because our early 20th century roads were […]

Changing Coil Springs? Always Use A Coil Spring Compressor

Five Reasons Car Springs Break

A Few Tips For Installing Front Coil Springs

When Is It Time To Replace My Vehicle’s Springs?

Why Do My New Coil Springs Fall Out?

A customer writes in to ask why their new coil springs fall out so easily during installation. Coil springs that have been in a car for a long time accumulate all sorts of cruft and debris that eventually sticks it in place. My new coil springs are falling out, is this normal? Ask The Spring […]

Selecting Mustang II Springs For Your Street Rod

So you need springs for your street rod’s Mustang II front end. How do you pick a spring when there are 23 options? You’re building a street rod, and one of the changes you’ve made is you’ve replaced the stock front end with a Mustang II. Now you have to decide what spring to use! […]

Always Use Coil Spring Compressors When Installing Coil Springs

Whenever you are changing coil springs, especially the front springs, always use a coil spring compressor. Never try changing springs without a compressor. You will get hurt. For coils used on struts, use the compressor that grabs the coils on the outside. For non-strut coils, use the compressor that goes inside the spring. Need a […]

Cutting Coils Springs

Mike Eaton explains how to cut your coil springs for a desired ride height. Warning! Only Cut Springs With Tangential Ends Remember: only springs with a tangential end can be safely cut. Why’s that? Because square ends and pigtail ends are designed to make full contact with their mounting points and they would have to […]

Coil Spring Ends

The three basic coil spring ends are tangential, square, and pigtail. Here, Mike Eaton shows you how to recognize each type. We have three basic types of ends: Tangential Ends The end of the spring twists off into space. If you try to stand this spring up on its end it will fall over. Square […]

How To Use The Ordering Form

Here we show how you can use the online ordering form to have springs manufactured for your exact vehicle.

How To Order Leaf and Coil Springs Online

Go to the ordering page here.

How Coil Springs Are Made

Mike Eaton explains how coil springs are manufactured on this One Minute Monday.

Busting Suspension Myths Slideshow

Mike will be at the Kentucky Expo Center for the NSRA Street Rod Nationals this Thursday busting suspension myths to pieces. Preview his presentation below and be sure to catch it if you go!