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 […]
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.
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 […]
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 […]
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 […]
Here we show how you can use the online ordering form to have springs manufactured for your exact vehicle.
Go to the ordering page here.
Mike Eaton explains how coil springs are manufactured on this One Minute Monday.
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!
My mechanic says the new coil springs must not be right because the old ones were much more difficult to take out. Is this so?
I’m looking to make my car a daily driver. Would Mustang II coils be a good choice?
Can I use variable rate coil springs on my van?
My vehicle had coil springs welded to the lower perch. What should I do?
Should I cut these coils, and how much should I cut them?
I can’t find the springs I need online! Why is that?
Which isolator should I use? Is it the same material for the bushings?
Can you compress the coil springs before you ship them?
Can a spring be both tangential and square?
Is there an advantage to using coil spring isolators on the bottom as well as the top of springs?
How can you tell what the coil rate and load is for my `67 A-Body?
Will fresh factory coils or longer coils gain me some height?
My coil springs are rubbing on the the upper ball joint housing. Is this ok? What should I do?
Mike, I recently purchased a 1934 Ford 3 window coupe replica. To make a really long story short its an older kit that just never got put together, but in an excellent condition. My first order of business is to get a rolling chassis. The build book that was provided by the manufacturer calls out […]
Mike, I have a ’72 Nova sub frame under my street rod and stock springs are way to stiff. Do you know what the spring rate of a stock Nova with a V-8 is and do you have softer front springs? – Ron Ron, The 72 Nova with a V8 used many different springs. The […]
Q – Mike, I bought both front and rear springs for my KR from Eaton and I am not happy at all. Just look at the picture. The nose of my car is sticking way up in the air. This is crap. I was sent the wrong springs. What are you going to do about […]
Dear Mr. Eaton, I must let you know that I am a very unhappy customer. In August of 2009 I purchase both front and rear coil springs for my 1969 Pontiac GTO. Your sales person, Gary, seemed to be very knowledgeable at that time. He asked more questions about my car than any other parts […]
Q -I ordered a set of coil springs so my 1969 GTO would sit 1 Inch lower. But when I put them on the car sat higher than it did with the old springs. How come? Don – New York A – Don, Remember when you placed the order with Gary he said asked how […]
Q – I’m interested in new springs for my 64 Bonneville. I bought new springs from XYZ Company 2 years ago and I’m not happy with the results. When I was having them installed the mechanic said one of the rear springs was bad so I got a replacement. I wanted a pair, but they […]
Mike, I purchased a set of new rear springs from you for my 1967 GTO and when I put them in the car leaned to the driver’s side about 3/4 of an Inch. The lean was there with the old springs but I thought the new springs would level it out. I even switched the […]
Mike, I have a 1970 Firebird, Fiberglass fenders, hood and nose piece, no fender wells and the battery in the trunk. So I have lightened up the front end by about 175 – 200 Lbs. The car now sits up high in the front and what I want is for it to sit 2″ lower […]
Mike, I want to lower my ’54 Ford but still keep it riding good, can this be done? -Jerry Jerry, Whenever a vehicle is lowered, there is a reduction in the amount of suspension travel. Because of this, the spring rate (how much weight it takes to deflect a spring one inch) is increased. Suspension […]