We Are Closed For Independence Day Break. We Will Be Open July 14th, 2025. You may still purchase parts online.

Proud to be The 2024 Manufacturer Of The Year at The National Street Rod Association

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

We Start with the O.E.M. Blueprints

Then we do our design magic and make leaf springs that really hold up. No sag, no squishy ride. Springs that work.

Worldwide Shipping

We ship from Detroit to anywhere in the world. Fit your vehicle with blueprint accurate American steel and cruise anywhere from Australia to Norway.

American Made For 85 Years

We have manufactured springs in Detroit since 1937, providing quality parts for major automotive companies, fleets, restoration specialists, hot rodders, and daily drivers.

Leaf Springs For 1940-1940 Mercury Convertible Sedan

Front Leaf Springs, Rear Leaf Springs, Shocks

Restore, Lift, or Lower Your Mercury Convertible Sedan

We design our springs from OEM blueprints, taking into account any modifications. Your suspension's design depends entirely on your vehicle's weight. The same vehicle with a different body style or engine size may require different springs. If what you need is not listed in our database, call during office hours at 1 (313) 963-3839 or request a quote.

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Mercury Convertible Sedan Suspension Parts Directory

1940 Mercury Convertible Sedan

1940 Mercury Convertible Sedan 4 DR, 6 Passenger

Available Parts: Front Leaf Springs, Rear Leaf Springs + Shocks

Other Available Makes

Allstate · American Motors · Bricklin · Buick · Cadillac · Chevrolet · Chevrolet Truck · Chrysler · Cord · Daimler · DeSoto · Dodge · Dodge Truck · Dual Ghia · Edsel · Ford · Ford Truck · GMC · Honda · Hudson · Hudson Truck · Hummer · Hyundai · International · Jeep · Kaiser Darrin · Kaiser-Frazer · LaSalle · Lincoln · Mahindra · Mercury · MG · Nash · Nissan · Oldsmobile · Packard · Plymouth · Plymouth Truck · Pontiac · Rambler · Sebring Vanguard · Sterling · Studebaker · Studebaker Truck · Toyota · Triumph · Willys

Contact EATON Detroit Spring

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

© 2025 EATON Detroit Spring, Inc.