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 […]
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.
Do Lightened Front Ends Need Lower Springs or Drop Spindles?
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 […]
Can I Cut Coil Springs With Pigtail Ends?
Q -Mike, I have a Riviera that I want lowered about 2 Inches in the rear. You don’t make lowered springs for this car, something about not enough demand. So what I want to do is cut the coils. Is this alright? Frank from Seattle A -Frank, in a lot of cases it is fine […]
Cutting Coil Springs
Mike, I need to lower the front of my car approximately 1 to 1 1/2inches. I understood from your " Question of The Week "answer, that you would cut an Inch off the spring to lower it an Inch but people are telling me that I am reading that wrong and that I would have […]
Will Stretching Then Cutting Coil Springs Increase Spring Rate While Maintaining Ride Height?
Mike, I cannot believe I finally found a spring expert! I have read all your tech articles and thank you very much for sharing your knowledge. Now for my question – Can you take an existing spring, stretch it and then shorten it to get a stiffer spring rate while keeping the car at the […]
How Effective Wheel Weight Can Change What Springs You Need
Dear Mike, We met in Richmond, VA at the NSRA show last August. My car is a 1937 Packard convertible with Fat Man suspension and Mustang II coil springs. The springs had sagged to the point that the lower A-arms were not level but were going up toward each wheel. It had been suggested by […]
The Math Behind Cutting Coil Springs
Does cutting a coil change the spring rate?
How To Get Rid Of Airshocks On 1940 Ford?
I have a street rod that uses the frame of a 1980 Cutlass LS which I believe is called a GM G Body. The car is a 1940 Ford two door coach. It has the rear springs form the original ’80 Cutlass in it and they are too weak so I use air shocks to […]
How Do I Know If I Need To Replace My Coil Springs?
Dear Eaton Tech Person, I am rebuilding a 1978 Ford, 4×4, F150, Standard Cab, 400 cu In. engine, truck for a series of articles. Even though the vehicle’s front springs appear to be fine, and it was not overly low in the front end on teardown, I am considering the replacement of the springs. The […]
I Cut My Coil Springs, Now They’re Too Stiff. Any Way To Correct This?
Mike, I purchased a set of your 2 Inch lowered springs for a 1979 AMC Pacer frontend that is installed on my 1954 3100 Pickup. To give it a more lowered stance my mechanic cut the springs, which in my opinion is to low but that is not the problem. It just rides way too […]
How Do I Find Firebird Front End Springs With The Right Spring Rate?
Mike: I have a 1976 Firebird front stub grafted to my 1936 Chevy. The stub has been narrowed 2 ½”, the drag link has been sleeved, and the engine moved back 11 Inches to accommodate the radiator. The front springs now are too stiff and carry the car like a 4 wheel drive vehicle. The […]
