378343
Tie Rod End
Vehicle Fitment
| Make | Model | Years | Chassis | Engine | Position |
|---|---|---|---|---|---|
| Chevrolet | C10 Pickup | 1973–1986 | — | — | OUTER |
| Chevrolet | C10 Suburban | 1973–1986 | — | — | OUTER |
| Chevrolet | C20 Pickup | 1971–1986 | — | — | OUTER |
| Chevrolet | C20 Suburban | 1971–1986 | — | — | OUTER |
| Chevrolet | C30 Pickup | 1971–1986 | — | — | OUTER |
| Chevrolet | G10 | 1973–1982 | — | — | OUTER |
| Chevrolet | G20 | 1971–1982 | — | — | OUTER |
| Chevrolet | G30 | 1971–1982 | — | — | OUTER |
| Chevrolet | K5 Blazer | 1976–1982 | — | — | OUTER |
| Chevrolet | P10 | 1973–1978 | — | — | OUTER |
| Chevrolet | P20 | 1971–1989 | — | — | OUTER |
| Chevrolet | P30 | 1971–1996 | — | — | OUTER |
| Chevrolet | R10 Pickup | 1987– | — | — | OUTER |
| Chevrolet | R10 Suburban | 1987–1988 | — | — | OUTER |
| Chevrolet | R1500 Suburban | 1989–1991 | — | — | OUTER |
| Chevrolet | R20 Pickup | 1987–1988 | — | — | OUTER |
| Chevrolet | R20 Suburban | 1987– | — | — | OUTER |
| Chevrolet | R2500 Pickup | 1989– | — | — | OUTER |
| Chevrolet | R2500 Suburban | 1990– | — | — | OUTER |
| Chevrolet | R30 Pickup | 1987–1988 | — | — | OUTER |
| Chevrolet | R3500 Pickup | 1989–1991 | — | — | OUTER |
| Gmc | C15 Pickup | 1975–1978 | — | — | OUTER |
| Gmc | C15 Suburban | 1975–1978 | — | — | OUTER |
| Gmc | C15/C1500 Pickup | 1973–1974 | — | — | OUTER |
| Gmc | C15/C1500 Suburban | 1973–1974 | — | — | OUTER |
| Gmc | C1500 Pickup | 1979–1986 | — | — | OUTER |
| Gmc | C1500 Suburban | 1979–1986 | — | — | OUTER |
| Gmc | C25 Pickup | 1971–1974 | — | — | OUTER |
| Gmc | C25 Pickup | 1975–1978 | — | — | OUTER |
| Gmc | C25 Suburban | 1971–1974 | — | — | OUTER |
| Gmc | C25 Suburban | 1976–1978 | — | — | OUTER |
| Gmc | C2500 Pickup | 1971–1974 | — | — | OUTER |
| Gmc | C2500 Pickup | 1979–1986 | — | — | OUTER |
| Gmc | C2500 Suburban | 1971–1974 | — | — | OUTER |
| Gmc | C2500 Suburban | 1979–1986 | — | — | OUTER |
| Gmc | C35 Pickup | 1971–1974 | — | — | OUTER |
| Gmc | C35 Pickup | 1975–1978 | — | — | OUTER |
| Gmc | C3500 Pickup | 1971–1974 | — | — | OUTER |
| Gmc | C3500 Pickup | 1979–1986 | — | — | OUTER |
| Gmc | G15 | 1975–1978 | — | — | OUTER |
| Gmc | G15/G1500 Van | 1973– | — | — | OUTER |
| Gmc | G1500 | 1979–1981 | — | — | OUTER |
| Gmc | G25 | 1976–1977 | — | — | OUTER |
| Gmc | G25/G2500 Van | 1971–1974 | — | — | OUTER |
| Gmc | G2500 | 1979–1981 | — | — | OUTER |
| Gmc | G35 | 1975–1978 | — | — | OUTER |
| Gmc | G35/G3500 Van | 1971–1974 | — | — | OUTER |
| Gmc | G3500 | 1979–1982 | — | — | OUTER |
| Gmc | Jimmy | 1975–1982 | — | — | OUTER |
| Gmc | P15 | 1975–1976 | — | — | OUTER |
| Gmc | P15/P1500 Van | 1973–1974 | — | — | OUTER |
| Gmc | P25 | 1975–1976 | — | — | OUTER |
| Gmc | P25/P2500 Van | 1971–1974 | — | — | OUTER |
| Gmc | P2500 | 1979–1988 | — | — | OUTER |
| Gmc | P35 | 1975–1978 | — | — | OUTER |
| Gmc | P35/P3500 Van | 1971–1974 | — | — | OUTER |
| Gmc | P3500 | 1980–1999 | — | — | OUTER |
| Gmc | R1500 Pickup | 1987– | — | — | OUTER |
| Gmc | R1500 Suburban | 1987–1990 | — | — | OUTER |
| Gmc | R2500 Pickup | 1987–1988 | — | — | OUTER |
| Gmc | R2500 Suburban | 1989– | — | — | OUTER |
| Gmc | R3500 Pickup | 1987–1991 | — | — | OUTER |
About Tie Rod Ends — function, symptoms & common questions
A tie rod end is the outermost ball-jointed connection in the steering linkage — the wear part that transfers steering motion from the rack (or center link) to the steering knuckle at each front wheel. Every steering system, modern rack-and-pinion or older parallelogram, has tie rod ends; they are one of the highest-volume steering wear items in the global aftermarket.
Also known as: outer tie rod end, steering tie rod end, track rod end (UK/EU), TRE.
How it works
Lateral-to-angular conversion
The steering rack moves left-right in a straight line. The tie rod end converts that lateral push into the angular motion that swings the steering knuckle around its pivot, turning the wheel.
Toe adjustment
The threaded sleeve between the inner and outer tie rod is the front-toe adjuster — turning it lengthens or shortens the linkage, opening or closing toe. All wheel-alignment toe corrections happen at this joint.
Suspension articulation
The ball joint inside the tie rod end allows the steering knuckle to rise and fall with the suspension while still transmitting steering input — without it, the steering would bind through bumps.
Structure and construction
A forged steel housing with an internal ball stud, sealed greased bearing surface and rubber/polyurethane dust boot. The stud has a tapered shaft with a castellated nut and cotter pin (or a self-locking nut) to lock it into the steering knuckle. Thread direction on the rod sleeve is opposite between left and right sides on most vehicles, allowing toe adjustment without disconnecting the joint.
Common failure symptoms
- Clunk over bumps or when turning. Worn ball joint rattling in its socket. Often most audible in low-speed parking-lot maneuvers.
- Vague / loose steering feel. Excessive freeplay at the steering wheel before the front wheels respond — input is being absorbed by the worn joint.
- Inner-edge tire wear. Toe drifts toward toe-out as the worn joint allows the wheel to splay, scrubbing the inner shoulder of the tire.
- Off-center steering wheel after alignment. A worn joint cannot hold the toe setting once load is applied; the alignment "drifts off" within days or weeks.
Common questions about Tie Rod Ends
How often should tie rod ends be replaced?
There is no fixed interval — they are replaced when worn. Typical life is 100,000–150,000 km on paved roads, less on rough or salted roads. Inspect every service: with the wheel off the ground, a good joint has zero perceptible play when the tire is rocked side-to-side.
Can I drive with a worn tie rod end?
Short distances at low speed, yes. A tie rod end that fails completely will result in total loss of steering on that wheel — the wheel will flop free and the vehicle will be undrivable. Replace promptly once a clunk or visible play is detected.
Do tie rod ends always come in pairs?
Not necessarily — left and right are usually sold individually and use opposite-thread rods. However, replacing both sides at the same time is best practice once one shows wear, since the second side will typically fail within a similar timeframe.
Is wheel alignment required after replacement?
Yes. The toe setting is established at the tie-rod sleeve, and any disassembly of the joint changes it. Drive directly to an alignment rack after replacement.
FAQ
What vehicles use OE 378343?
Form-fit-function tested against the OEM specification. Check the vehicle compatibility table above — it lists every confirmed make, model, year, and position. If your vehicle is not listed, contact us before ordering.
How do I order OE 378343?
Click Request Quote or email us the OE number with your target quantity and destination. Our team confirms fitment, availability, and lead time within 1 business day. Mix-and-match across part numbers is welcome.