EATON Detroit Spring

The leading manufacturer of leaf and coil springs for the street rod and restoration 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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    • 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.

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MENUMENU
  • Home
  • Products
    • Leaf Springs
    • Coil Springs Mustang II Springs
    • Shocks
    • Attaching Parts And Hardware
    • Installation Kits
    • Leaf Spring Shackle Replacement Kits & Parts
  • Applications
    • We Manufacture Leaf & Coil Springs For...

    • Restorations
    • Resto-Mods
    • Street Rods
    • Modern Vehicles
    • Custom Design
    • Makes We Have Available Online

    • Allstate
    • American Motors
    • Buick
    • Cadillac
    • Chevrolet
    • Chrysler
    • DeSoto
    • Dodge
    • Edsel
    • Ford
    • Hudson
    • International
    • Kaiser-Frazer
    • LaSalle
    • Lincoln
    • Mercury
    • Nash
    • Oldsmobile
    • Plymouth
    • Pontiac
    • Rambler
    • Studebaker
    • Chevrolet Truck
    • Dodge Truck
    • Ford Truck
    • GMC
    • Honda
    • Hummer
    • Plymouth Truck
    • Studebaker Truck
  • Spring Tech
    • Learn About Leaf & Coil Springs
      • Spring Tech Videos
      • One Minute Monday
      • EATON Detroit Spring Podcast
      • Replacing Springs
      • Ride Height
      • Ride Quality
      • Custom Spring Design
      • Spring Manufacturing
      • Browse All Tech Questions
    • 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.

  • About Us
    • About EATON Detroit Spring
    • Customer Showcase
    • Facebook
    • YouTube Channel
      • One Minute Monday
  • Order Here
    • Lookup & Purchase Your Vehicle's Parts
    • Request A Quote
    • Email Our Sales Team
  • Get Newsletter
  • Click to Call Now: 1 (313) 963-3839

Spring Tech, One Minute At A Time

Watch the latest of our One Minute Monday series or browse the archive below

How To Interpret Ford Part Numbers

Ford part numbers are divided in to 3 sections – A 4-digit Prefix, the Basic Part Number andthen a Suffix The 4-digit Prefix breaks down like this – First Digit: Decade – C5ZZ5560D A = 1940’s, B = 1950’s, C = 1960’s, D = 1970’s, E = 1980’s, F = 1990’s, etc. Second Digit: Year […]

Filed Under: One Minute Monday

The Most Common Automotive Body Styles

Your car’s body style plays a significant part in your spring’s engineering. Make sure you’re using the correct terms when ordering your springs.

Filed Under: One Minute Monday

Measuring Leaf Spring Free Arch

Measuring your current leaf springs right will ensure your replacement springs fit and perform just as you need. First tip: Don’t measure the arch from the floor!

Filed Under: One Minute Monday

What is Spring Rate? And How Does It Effect My Ride?

Spring Rate, simply put, is the amount of rate required to deflect a spring one inch. But what does that mean to you?

Filed Under: One Minute Monday

Rubber Vs. Urethane Suspension Bushings

Bottom line: if you prefer comfort, go for rubber. If you need performance, go for urethane.

Filed Under: One Minute Monday

Finishing Your Spring Install

You just installed your springs, but hold on! Make sure you finish the job right!

Filed Under: One Minute Monday

Installing New Springs Is Like Putting On New Shoes

It’s easy to take a worn part out. Not as easy to put a fresh part in.

Filed Under: One Minute Monday

Vibrations After Installing New Springs?

When a car’s springs sag over time, other parts get worn down too. Installing new springs with old hardware may cause vibrations in these parts. This is why it’s important to use fresh attaching parts when installing new springs.

Filed Under: One Minute Monday

Got Driveline Vibration? Check Your U-Bolts

Make sure you tighten your U-joint U-bolts properly to avoid driveline vibration.

Filed Under: One Minute Monday

Which Direction Should Leaf Springs Be Bowed?

Leaf springs do their job whether they’re smiling or frowning. Some do their job with a completely flat expression. They all do their job well, if that was how the manufacturer designed it.

Filed Under: One Minute Monday

How Leaf Spring Lowering Blocks Cause Axle Wind Up

Lowering a leaf spring suspension should be done correctly to avoid handling issues. Here’s why lowering blocks aren’t the magic bullet.

Filed Under: One Minute Monday

Measuring Ride Height Drop From Reversing Leaf Spring Eyes

Reversing your leaf spring eyes will provide a drop, but exactly how much of a drop? Here’s how to calculate ride height drop when you reverse your spring eyes.

Filed Under: One Minute Monday

How To Fix Squeaking Leaf Springs

There are two causes of leaf spring squeak: tight eye bolts or shackles, and mis-torqued u-bolts.

Filed Under: One Minute Monday

Rebound Clips Group Leaves To Make Them Stronger Together

Multi-leaf springs resist breaking thanks to rebound clips. Here’s why.

Filed Under: One Minute Monday

All About Leaf Spring Centerbolts

Ever wonder the function of a leaf spring centerbolt? There are several more than you’d imagine!

Filed Under: One Minute Monday

The Difference Between Standard & Heavy Duty Springs

It’s easy to get confused about spring terms, so here’s a quick primer on standard vs heavy duty springs. Heavy duty springs can carry a heavier load than standard springs, but they do not set the vehicle higher.

Filed Under: One Minute Monday

The Cars of Cuba – Cienfuegos

Filed Under: One Minute Monday

The Cars of Santiago, Cuba

Filed Under: One Minute Monday

We Make Springs For Launch Pads, Tackling Dummies, and Wienermobiles Too

On this One Minute Monday, we look back at the extreme variety of applications we manufacture springs for.

Filed Under: One Minute Monday

When To Replace Your Springs

If your vehicle rides OK, sits OK, and the leaves and coils look OK, then your springs are OK. If you want to change your stance or ride quality, or if a spring is broken in any way, it’s time to replace your springs. Give us a call and we’ll be glad to help.

Filed Under: One Minute Monday

Get Your U-Bolt Torque Right

Torque is more than the force required to open a beer bottle. The proper torque will keep your leaf spring from breaking. Use your manufacturer’s torque specs when tightening your u-bolts, or use our recommendations.

Filed Under: One Minute Monday

Why Shot Peening Is Important For Your Leaf and Coil Springs

Shot peening significantly extends the life of your springs.

Filed Under: One Minute Monday

How To Get Original Brochures For Your Classic Car for Free

The original brochures for classic vehicles are a snapshot of history and valuable mechanical information about your vehicle. Plus, they’re beautiful! Go to our parts lookup page to look up your vehicle’s brochure for free!

Filed Under: One Minute Monday

How To Properly Torque Your Leaf Spring’s U-Bolts

Here, Mike Eaton explains how and when to torque your leaf spring’s u-bolts. Here’s the recommended specs we mentioned.

Filed Under: One Minute Monday

Do Lowered Cars Have Stiffer Rides?

Here, Mike explains why lowering your vehicle can cause a stiffer ride, how a vehicle can be lowered too much, and explains the safe threshold to lower your vehicle with new springs and minimal effect on ride quality.

Filed Under: One Minute Monday

The Danger of Improperly Chromed Springs

Chromed springs look cool, and show an immaculate attention to detail. However, if done wrong, the results could be disastrous. Here, Mike explains how dangerous hydrogen embrittlement caused by improperly chroming springs is.

Filed Under: One Minute Monday

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.

Filed Under: One Minute Monday

Dennis Gage on Getting American Made Springs

Dennis Gage visits National Parts Depot in Florida and talks about getting correct, American-made springs from EATON Detroit Spring

Filed Under: One Minute Monday

Five Keys To A Good Leaf Spring Suspension

Here are the five key factors to keep in mind when working with leaf spring suspensions for your classic car or hot rod.

Filed Under: One Minute Monday

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?

Filed Under: One Minute Monday

Why Unfinished Vehicles Tend To Sit Too High

Springs support weight, so if you measure the ride height of an unfinished vehicle, you won’t be measuring the final stance.

Filed Under: One Minute Monday

Mike Eaton Interviewed on Sam’s Garage

In this extended episode, listen to Mike Eaton talk with Sam Memmelo on his radio show, Sam’s Garage.

Filed Under: One Minute Monday

Installing Model A Leaf Springs

Model A springs need to be stretched around six inches before you’ll be able to install them into your vehicle.

Filed Under: One Minute Monday

How To Readjust Tip Inserts Into Place

Sometimes tip inserts get whacked out of place during delivery. Here’s how to fix it with a screwdriver.

Filed Under: One Minute Monday

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 […]

Filed Under: One Minute Monday

The Difference Between Important Spring Terms

Mike explains a few key terms related to the design and manufacture of springs of all kinds.

Filed Under: One Minute Monday

Three Types of Leaf Spring

Mike Eaton explains the basic distinction between multi-leaf springs, mono-leaf springs, and parabolic leaf springs.

Filed Under: One Minute Monday

Calculating Spring Rate

Mike Eaton explains how to find your coils spring rate using a simple equation. This process is useful for those seeking to cut their coil springs, as it shows how cutting coils lead to a stiffer ride. (Hint: ordering new coils to custom specs can preserve or even enhance your ride quality and stance, a […]

Filed Under: One Minute Monday

Leaf Spring End Types

Which leaf spring end-type is best for trucks, and which end-type gives you the smoothest riding springs? Mike Eaton explains the different end types leaf springs can have.

Filed Under: One Minute Monday

Cutting Coils Springs

Mike Eaton explains how to cut your coil springs for a desired ride height.

Filed Under: One Minute Monday

Coil Spring Ends

The three basic coil spring ends are tangential, square, and pigtail. Here, Mike Eaton shows you how to recognize each type.

Filed Under: One Minute Monday

Painting Leaf Springs

Here, Mike shows you how to paint your leaf springs. – Hang your spring in a well ventilated area – Clean your spring with acetone – Paint four or five coats of high-temperature engine paint, letting each coat dry – Wa la! A painted leaf spring

Filed Under: One Minute Monday

Measuring Ride Height – Don’t Use A Jack Stand

Mike Eaton explains why not to use a jack stand when measuring your ride height. The full weight of the completed vehicle, the wheels, and tires are all part of the equation.

Filed Under: One Minute Monday

How Easy Changing Leaf Springs Really Is

You’ve seen our leaf spring removal and reinstallation videos, but those are polished and edited for brevity. When you work on your springs yourself, you may find things don’t always go as smooth at the textbooks. This One Minute Monday is two minutes long to make a point.

Filed Under: One Minute Monday

How To Reinstall A Rear Leaf Spring

Watch as Mike explains the steps for how to install rear leaf springs.

Filed Under: One Minute Monday

Removing Leaf Springs

How to remove leaf springs, step by step from Mike Eaton at EATON Detroit Spring

Filed Under: One Minute Monday

Tip Inserts for Leaf Springs

Mike Eaton shows the variety of tip inserts and leaf liners used by manufacturers to reduce inter-leaf friction.

Filed Under: One Minute Monday

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.

Filed Under: One Minute Monday

How To Order Leaf and Coil Springs Online

Go to the ordering page here.

Filed Under: One Minute Monday

Measuring U-Bolts

This week, Mike explains the two different types of u-bolts you may encounter and how to measure them.

Filed Under: One Minute Monday

How To Measure Shocks

When you need new shocks but you don’t know which shocks will fit your vehicle, you must do some measuring.

Filed Under: One Minute Monday

Different Types of Mounts on Shocks

Shocks mount on both ends, but what kind of ends are they? In this video, Mike points out shocks with studs, eyes, t-bars, and a few combinations.

Filed Under: One Minute Monday

Different Shocks for Classic Cars

Here, Mike shows the different types of shocks we offer for classic vehicles. https://www.youtube.com/watch?v=m2RGPU3lKHI

Filed Under: One Minute Monday

How Coil Springs Are Made

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

Filed Under: One Minute Monday

How We Make Our Leaf Springs (6 Minute Video)

Filed Under: One Minute Monday

Find Parts For Your Vehicle

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Can’t Find What You Need?

If you can’t find your vehicle in the above search form, be sure to call us! We are in the office every weekday. Call 1-313-963-3839

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Every Wednesday we send spring tech videos, articles about classic cars and hot rods, and feature customer vehicles in our showcase.

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

Franz Estereicher on Early Corvette Suspensions

Franz Estereicher on Early Corvette Suspensions

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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

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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 2020 EATON Detroit Spring, Inc.