EATON Detroit Spring

The leading manufacturer of leaf and coil springs for the street rod and restoration automotive industries

We Help Maintain American Icons by Manufacturing Leaf and Coil Springs Right Here in America

Phone: 1 (313) 963-3839
Fax: 1 (313) 963-7047

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      We have been manufacturing springs for American vehicles for over 80 years. Our process and expertise has been continuously refined and improved over the century and our Spring Tech section reflects some of that specialty knowledge.

      Browse our many articles, watch videos produced in partnership with AutoRestoMod, and learn all about your spring suspension here.

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  • Find Parts That Fit Your Vehicle
  • Click to Call Now: 1 (313) 963-3839
MENUMENU
  • Home
  • Products
    • Suspension Parts
      • Leaf Springs
      • Coil Springs
      • Shocks
      • Attaching Parts And Hardware
      • Installation Kits
      • Leaf Spring Shackle Replacement Kits & Parts
    • Street Rod Suspension Parts
      • Mustang II Front End Springs
      • 48 Inch Truck Springs
    • Allstate - Chrysler
      • Allstate
      • American Motors
      • Bricklin
      • Buick
      • Cadillac
      • Chevrolet
      • Chevrolet Truck
      • Chrysler
    • Daimler - Ford
      • Daimler
      • DeSoto
      • Dodge
      • Dodge Truck
      • Edsel
      • Ford
      • Ford Truck
    • GMC - Jeep
      • GMC
      • Honda
      • Hudson
      • Hudson Truck
      • Hummer
      • International
      • Jeep
    • Kaiser Darrin - Nissan
      • Kaiser Darrin
      • Kaiser-Frazer
      • LaSalle
      • Lincoln
      • MAHINDRA
      • Mercury
      • MG
      • Nash
      • Nissan
    • Oldsmobile - Rambler
      • Oldsmobile
      • Plymouth
      • Plymouth Truck
      • Pontiac
      • Rambler
    • Sterling - Willys
      • Sterling
      • Studebaker
      • Studebaker Truck
      • Toyota
      • Willys
    • Request A Custom Quote
    • Search For Parts Here
  • Spring Tech
    • Learn About Leaf & Coil Springs
      • Spring Tech Articles
      • Tech Questions
      • Spring Tech Videos
      • Featured Elsewhere
      • EATON Detroit Spring Podcast
      • Buy Ford Manuals
    • Spring Tech 101

      We have been manufacturing springs for American vehicles for over 80 years. Our process and expertise has been continuously refined and improved over the century and our Spring Tech section reflects some of that specialty knowledge.

      Browse our many articles, watch videos produced in partnership with AutoRestoMod, and learn all about your spring suspension here.

    • Browse By Topic
      • Leaf Springs
      • Coil Springs
      • Attaching Parts
      • Ride Height & Stance
      • Ride Quality
      • Manufacturing Springs
      • Replacing Springs
      • Modifying Springs
      • Ordering Springs
  • About Us
    • About EATON Detroit Spring
    • Customer Showcase
    • Send Us Photos Of Your Ride!
    • Free Stuff For Car Shows!
    • Facebook
    • YouTube Channel
      • Spring Tech Videos
  • Order Here
    • Lookup & Purchase Your Vehicle's Parts
    • Request A Quote
    • Email Our Sales Team
    • Dealer Information
  • Find Parts That Fit Your Vehicle
  • Click to Call Now: 1 (313) 963-3839

When Should I Replace My Springs?

The most obvious answer would be “when they are broke.”

All springs have a finite life, that is, one day they will
break. But also due to use, wear, age, and other factors, springs lose their ability
to hold weight. Though they aren’t broke, they are weak and should be replaced.

Close Up Inspection

OK, so you crawled under your vehicle and given the springs
a good visual inspection and you have not spotted any broken leaves or coils.

Even though you do not see anything broke, how do the
springs look? Can you see daylight through any of the leaves? Are any leaves
missing? Are the leaves fanned out like a deck of cards?

Are the U-bolts in one piece and straight up and down?

Take a good look at the spring eyes. How do the bushings
look? Egg shaped? Dry rotted?

Are any of the coils bent or distorted?

Unloaded Inspection

Now get back out and stand at her side.

Make sure she is sitting on level ground and the tires are
at the correct air pressure.

Stand off to one side and take a good overall look at her.
How does the front sit as compared to the back? And how does the back look as
compared to the front? Is the whole vehicle too low? Just one end? Is it too
high?

Now go stand at the rear. How does she sit side to side?
This is fun, so go do the same thing standing at the front.

Incremental Loading Inspection

Now repeat the standing visual inspection but with someone
about your size sitting in the driver’s seat. After going around the car again,
throw someone in the passenger seat and repeat.

Don’t stop now, you’re on a roll. Add some luggage or at
least the stuff you take to cruise night or the car show.

Does adding more weight change the stance to a point to
where she just looks butt ugly?

Driving Inspection

Let’s now check out how she rides and handles. Take a drive
on smooth roads. Then find some not-so-smooth roads. Hit some bumps. Go through
a few good dips.

Any bottoming out? Funny clunking?

Now the handling. Does she dog track? Pulls? Wanders? Change
lanes when going over bumps? How about any new shimmies at speed?

Right after the road test is a great time to check the
shocks. Feel them. Friction is created as a shock works up and down, and we all
know that friction creates heat. So, if the shocks are warm or even a bit hot
when you wrap your hand around them, they are fine.

If you see, feel or think there is a problem with any of the
above tests, then chances are the springs should be replaced.

If it is time for new springs, now would be the time to
think about how you would like her to sit and ride. New springs can get you
there.

Filed Under: Spring Tech Article Tagged With: Replacing Springs, Troubleshooting Springs

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OEM Replacement & Custom Springs

  • Classic Cars Springs, Hot Rods, & More
  • Over 24,000 OEM Spring Blueprints
  • 166,000+ Stock Spring Applications
  • Design Staff Available For Custom Applications
  • Spring Experts Since 1937
  • Made in Detroit, Michigan
  • Made in the U.S.A.

How To Order Springs For Your Vehicle

To find the correct springs for your vehicle, you need to provide as much information about your car as possible. There is no such thing as a one-size-fits-all spring.

We try to make this easy by providing many ways to order your springs and send in as much information as possible:

  1. Call Us at 1 (313) 963-3839
    For Quickest Order Completion
  2. Fill Out Our Quote Request Form
    To Spell Out Details
  3. Browse For Parts Online
    To Browse By Make, Model, Body Style, & Engine Size

Quick Spring Tech Videos

Listen To Our Classic Suspension Podcast

Top Hat John, Classic Car Appraiser Extraordinaire

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Need Spring Wisdom?

Just ask the Spring Guru!
We love helping with any leaf or coil spring problem.

WARNING:

This product may contain chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
www.P65Warnings.ca.gov

  • About EATON Detroit Spring, Inc.
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Locate & Connect To EATON Detroit Spring

EATON Detroit Spring, Inc.
1555 Michigan Avenue
Detroit, MI 48216
Phone: 1 (313) 963-3839
Fax: 1 (313) 963-7047
Email: inquiries@eatonsprings.com

Content Copyright 2022 EATON Detroit Spring, Inc.