The 1975 Checker Marathon has 8 suspension parts with verified fitment on this page — 3 part types and 6 brands, covering both the 4.1L 250cid L6 and the 5.7L 350cid V8. Each part includes a manufacturer part number and application notes.
The suspension system on the 1975 Checker Marathon controls ride, tire contact and alignment through shocks, struts, control arms, bushings and links. All 8 listed parts are Ball Joint (4 parts), Control Arm Bushing (2 parts) and Shock / Strut (2 parts).
The 1975 Checker Marathon was sold with both the 4.1L 250cid L6 and the 5.7L 350cid V8. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
6 brands supply suspension parts for the 1975 Checker Marathon, led by DORMAN (2 parts), KYB (2 parts) and ACDELCO (1 part), plus 3 more brands. Quality grades include Daily Driver and Economy.
Each part number listed for the 1975 Checker Marathon opens a page with every vehicle that part fits.
Ball Joint
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 4.1L 250cid L6 | 45D2000 | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| DELPHI Fits: 4.1L 250cid L6 | TC6494 | 🇺🇸 US 🇨🇦 CA | Front Lower | View on Amazon |
| DORMAN Fits: 4.1L 250cid L6 | 540049 | 🇺🇸 US 🇨🇦 CA | Front Lower | View on Amazon |
| MOOG Fits: 4.1L 250cid L6 | K5073 | 🇺🇸 US 🇨🇦 CA | Front Lower | View on Amazon |
This table covers the ball joints that articulate each control arm at the knuckle.
4 Ball Joint parts are listed for the 1975 Checker Marathon, from ACDELCO, DELPHI, DORMAN and 1 other brand.
This group includes ACDELCO 45D2000, DELPHI TC6494 and DORMAN 540049 and the remaining parts above.
Control Arm Bushing
Daily Driver
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| MEVOTECH Fits: 4.1L 250cid L6 | MS40486 | 🇺🇸 US 🇨🇦 CA | SupremeKit | View on Amazon |
Economy
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 4.1L 250cid L6 | 533946 | 🇺🇸 US 🇨🇦 CA | Front Upper Forward | View on Amazon |
This table covers the bushings pressed into each control arm. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles.
2 Control Arm Bushing parts are listed for the 1975 Checker Marathon, from MEVOTECH and DORMAN.
The Daily Driver section lists 1 option from MEVOTECH — grouped for everyday commuting duty. MEVOTECH MS40486 is listed in this group.
In the Economy grade, DORMAN supplies 1 part: the catalog's value-priced group. A representative part number is DORMAN 533946.
Part numbers include MEVOTECH MS40486 and DORMAN 533946.
Shock / Strut
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| KYB Fits: 4.1L 250cid L6 | KG5429 | 🇺🇸 US 🇨🇦 CA | Gas-A-Just Monotube | View on Amazon |
| KYB Fits: 4.1L 250cid L6 | KG5404 | 🇺🇸 US 🇨🇦 CA | Gas-A-Just Monotube | View on Amazon |
This table covers the shocks and struts that damp wheel motion. Typical signs include a nose that keeps bouncing, cupped tires, or fluid weeping down the body. Replace shocks or struts in axle pairs and renew the mounts if they are torn or collapsed.
KYB supplies both parts for the 1975 Checker Marathon.
Part numbers include KYB KG5429 and KYB KG5404.
Buying Suspension Parts for a 1975 Checker Marathon
On this vehicle, the suspension system controls ride, tire contact and alignment through shocks, struts, control arms, bushings and links.
- Match the engine first. Every suspension part here is engine-specific; each row shows which engine(s) it fits.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace shocks and struts in axle pairs, renew the sway-bar links with the struts, and get an alignment after any control-arm or tie-rod work.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Ball Joint and Control Arm Bushing .
Frequently Asked Questions
How many suspension parts fit the 1975 Checker Marathon?
Our catalog currently lists 8 suspension parts for the 1975 Checker Marathon across 3 subcategories and 6 brands, covering both the 4.1L 250cid L6 and the 5.7L 350cid V8. Each part is matched to the engine(s) it fits.
Do suspension parts differ between 1975 Checker Marathon engines?
Yes. Every suspension part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of suspension problems on a 1975 Checker Marathon?
Common symptoms include clunks over speed bumps, wandering steering, cupped tire wear, or a nose that keeps bouncing after a dip. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace shocks and struts in axle pairs, renew the sway-bar links with the struts, and get an alignment after any control-arm or tie-rod work.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 1975 Checker Marathon was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 1975 Checker Marathon?
First match the engine — each row shows which engine(s) the part fits. Then worn bushings often mimic bad shocks — inspect before buying, and remember loaded vs unloaded strut assemblies differ in labor by hours. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 1975 Checker Marathon
Suspension Parts for Other Checker Marathon Years
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