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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  • 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

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 within the decade – C5ZZ5560D

1 = the 1st year,  2 = the second year,  3 = the third year, etc.

Third Digit: Model – C5ZZ5560D

A = Ford (Generic) / Galaxie (1958-later)
B = Bronco (1970-73), Maverick (1975-77), Fairmont (1978-83)
C = Remanufactured Parts (1966-75), Elite (1975), Capri (1979-later)
D = Falcon (1960-69), Maverick (1970-74), Granada (1975-82), LTD (1983-later)
E = Truck (Cab over Engine) (1970-73), Pinto (1976-80), Escort (1981-later)
F = Foreign sales / Trans Am Racing
G = Comet (1961-67), Montego (1968-76), EXP (1982-later)
H = Holman/Moody HiPo Part, Heavy Truck (1966-82), Medium Heavy Truck (1983-later)
I = NOT USED
J = Industrial / Marine engines
K = Edsel (1958-60), Tilt Cab (1970-73), Comet (1975-77), Zephyr (1978-83), Marquis (1983-later)
L = Lincoln (1958-60), Mark (1961-later)
M = Mercury (1958-later)
N = Tractor (1958-later)
O = Fairlane (1962-68, Torino (1969-76), LTD II (1977-79), LN7 (1982-83)
P = Autolite (Later Motorcraft) (1962-later)
Q =- NOT USED
R = Rotunda (Generic)(1962-69), Ford of Europe (1970-later), Remanufactured Parts (1976?-later)
S = Thunderbird (1958-later)
T = Truck (1958-65), Light/Medium Truck (1966-82), Bronco (1966-82, Except 1970-73), Light Truck & Bronco I (1983-later)
U = Econoline/Club Wagon Van (1961-later)
V = Lincoln Continental (1961-81)
W = Cougar (1967-80), XR7 (1981-82), Cougar (1983-later)
X = Truck (Short Highway) (1970-73)
Y = Meteor (Canada) (1962-72), Bobcat (1975-80), Lynx (1981-later)
Z = Mustang 1964-73; Mustang II 1974-78; Mustang 1979-later
1 = NOT USED
2 = Pinto (1972-75)
3 = Tempo (1984-later)
4 = Comet (1971-74), Monarch (1975-80), Cougar (1981-82), Marquis (1983-later)
5 = Recreation Vehicles (1974-75), Continental (1982-later)
6 = Pantera (1971-75), Topaz (1984-later)
7 = Courier (1971-82); Ranger/Bronco II (1983-up); Explorer (1991-later)
8 = Capri (U.S. Parts) (1972-75)
9 = Turbine Engine Parts (1970-75)

Fourth Digit:  Design Engineering Office – C5ZZ5560D

A = Light Truck Engineering Division
B = Body and Electrical Product Division
C = Chassis
D = Overseas Product Engineering
E = Engine
F = General Parts/Electrical and Electronics Division
G = NOT USED
H = Climate Control (1972-up)
I = NOT USED
J = Autolite/Ford Parts & Service Division
K = NOT USED
L = Industrial Engine Parts & Service
M = Performance/Special Vehicle Operations (Incl. Holman Moody)
N = Tractor Parts
O = NOT USED
P = Auto Transmission
Q = NOT USED
R = Manual Transmission
S = Light & Heavy Truck Special Order Parts
T = Heavy Truck Engineering
U = Special Vehicle Operations
W = Axle and Driveshaft
X = Emissions, Economy and Special Vehicle Engineering (Muscle Car Parts)
Y = Lincoln/Mercury Service Parts
Z = Mustang 1964-73

The Basic Part Numbers are divided into numerical groups –

Still using Service Part Number C5ZZ5560D

1000-1250 = Wheels, hubs and drums
1350-1499 = Spare wheel carrier
2001-2285 = Brakes (service)
2307-2438 = Brakes (power)
2442-2482 = Brake controls
2505-2900 = Brakes (parking)
3000-3359 = Front suspension and steering linkage
3500-3764 = Steering gear
4000-4296 = Rear axle
4600-4859 = Drive shaft
5000-5176 = Frame
5200-5299 = Muffler & exhaust pipe
5300-5499 = front spring and stabilizer
5550-5832 = Rear spring
6000-6898 = Engine
6905-6968 = Transmission overdrive and engine steady rest
7000-7997 = Transmission (Automatic or Manual) and Clutch
8000-8499 = Radiator and grille
8500-8689 = Water pump and fan
9002-9296 = Fuel tank and supercharger
9301-9420 = Fuel Pump
9421-9499 = Manifolds, clamps, etc.
9500-9599 = Carburetor and supercharger
9600-9699 = Air cleaner
9700-9999 = Accelerator and choke control rods
10000-10449 = Generator and Alternator
10500-10653 = Voltage regulator
10654-10756 = Battery
10838-10990 = Instruments
11000-11382 = Starter motor
11450-11688 = Lighting and ignition switch
12000-12390 = Ignition coil, distributor, condenser
12402-12425 = Spark plugs
13002-13248 = Lamps (head and parking)
13402-13796 = Lamps (rear)
13809-13853 = Lamps (license & pillar) & horn
14197-14689 = Wiring
15000-15858 = Miscellaneous accessories
16000-16550 = Front fender
16600-16999 = Hood
17005-17125 = Tools
17248-17383 = Speedometer & tachometer
17402-17666 = Windshield wiper & washer
17700-17730 = Mirror
17736-17999 = Bumper
18000-18125 = Shock absorber
18148-18249 = Comfort-Convenience Accessories
18250-18699 = Heater
18800 = Radio & Antenna
18900 = Speakers and radio accessories
19000 = Gasoline
19100 = Fire Extinguishers
19500-19585 = Custom Accessories; Appearance and maintenance materials
19600-19980 = Air Conditioner

The Suffix denotes the change level – C5ZZ5560D

A = 1st change level

B = 2nd change level

C = 3rd change level

D = 4th change level

Z = 26th change level

AA = 27th change level

AB = 28th change level, etc.

With the above chart you should have identified Service Part Number C5ZZ5560D as a rear spring for a 1965 Ford Mustang.

Filed Under: Spring Tech Videos Tagged With: Manufacturing Springs, Ordering Springs

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OEM Replacement & Custom Springs

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  • Spring Experts Since 1937
  • Made in Detroit, Michigan
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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

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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

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