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Delphi TC2579 Suspension Ball Joint - Front Upper
| Brand | Delphi TC2579 |
|---|---|
| Position | Front Upper |
| Material | Steel |
| Length | 88 |
| Color | Gray |
| Stud Thread Diameter | 0.563 |
| Castle Nut Included | Yes |
| Grease Fitting Included | No |
| Suspension Grade Type | Standard |
| Bushings Included | No |
| Dust Boot Included | Yes |
| Ball Joint Assembly | Yes |
| Width | 80.0 |
| Cotter Pin Included | Yes |
| Cotter Pin Hole | Yes |
| Mounting Hardware Included | Yes |
| Mounting Bolt Length | 0.984 |
| Mounting Bolt Length | 25.0 |
| Washers Included | No |
| Height | 3.543 |
| Nuts Included | Yes |
| Mounting Hole Quantity | 3 |
| Adjustable | No |
| Greaseable | No |
| Stud Thread Length | 1.024 |
| Wrench Size | 13.0 |
| Stud Type | Threaded |
| Mounting Type | Bolt on |
| Dust Boot Material | Choloroprene rubber (cr) |
| Mounting Bolt Shank Diameter | 0.313 |
| Mounting Bolt Head Diameter | 0.571 |
| Mounting Bolt Head Diameter | 14.5 |
| Fits | Ford and Mercury · 16 vehicles |
Standard replacement. OE expertise helps ensure compatibility with the original part.
Bolt-on installation. Includes mounting hardware for a straightforward install.
Steel construction. Built with a dust boot and threaded, tapered stud.
Cross-references Dorman - OE Solutions 520-105, Mevotech Supreme CMS401188 and MOOG Chassis Products K8142 for the same application. See all 8.
Delphi TC2579 Front Upper Ball Joint
Delphi TC2579 is a front upper suspension ball joint built as a standard replacement for classic Ford and Mercury applications. It combines a steel body, threaded stud, dust boot, and included mounting hardware for a direct-service suspension repair on compatible vehicles.
Key Features
- Front upper suspension ball joint for Ford Mustang and Mercury Cougar applications
- Steel construction with gray finish
- Ball joint assembly includes dust boot, castle nut, cotter pin, and mounting hardware
- Threaded stud design with tapered stud profile
- Bolt-on mounting type with three mounting holes
- Standard replacement grade for service work
- Greaseable: No; grease fitting not included
Detailed Description
Delphi TC2579 is engineered for front upper suspension service on 1964-1973 Ford Mustang, 1970-1973 Mercury Cougar, and 1970-1971 Mercury Montego models. Delphi applies OE-focused dimensional and material analysis to help ensure proper fit and consistent suspension geometry in the aftermarket. The part number TC2579 is a practical choice when replacing a worn front upper ball joint on a Mustang, Cougar, or Montego with a bolt-on design.
This part cross-references MOOG Chassis Products K8142 for the same application.
What This Part Helps Address
- Front-end looseness or play from a worn upper ball joint
- Clunking or popping noises from the front suspension
- Uneven tire wear related to suspension joint wear
- Steering response issues caused by excess joint movement
- Restoration or maintenance of original suspension geometry on classic Ford and Mercury vehicles
Installation Notes and Tips
Fits 1964-1973 Ford Mustang, front upper. Fits 1970-1973 Mercury Cougar, front upper. Fits 1970-1971 Mercury Montego, front upper. Verify stud taper, mounting-hole pattern, and suspension configuration before installation. Because this is a bolt-on front upper ball joint, inspect the surrounding control arm and fasteners for wear or corrosion during service. Delphi TC2579 includes a dust boot and mounting hardware; follow factory torque specifications and alignment procedures after installation.
Quality Assurance
Delphi subjects steering and suspension components to extreme temperature testing and extended salt-spray exposure to evaluate durability in harsh conditions. The brand also uses dimensional and material analysis to support OE-style fit and compatibility for aftermarket service.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1973 | Ford | Mustang | Front Upper | — |
| 1973 | Mercury | Cougar | Front Upper | — |
| 1972 | Ford | Mustang | Front Upper | — |
| 1972 | Mercury | Cougar | Front Upper | — |
| 1971 | Ford | Mustang | Front Upper | — |
| 1971 | Mercury | Cougar | Front Upper | — |
| 1971 | Mercury | Montego | Front Upper | — |
| 1970 | Ford | Mustang | Front Upper | — |
| 1970 | Mercury | Cougar | Front Upper | — |
| 1970 | Mercury | Montego | Front Upper | — |
| 1969 | Ford | Mustang | Front Upper | — |
| 1968 | Ford | Mustang | Front Upper | — |
| 1967 | Ford | Mustang | Front Upper | — |
| 1966 | Ford | Mustang | Front Upper | — |
| 1965 | Ford | Mustang | Front Upper | — |
| 1964 | Ford | Mustang | Front Upper | — |
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