Direct fit Ford Fairmont 1978-1983 (6-year US production compact car). Ford Fairmont built on FAMOUS FOX-BODY PLATFORM 1st generation - INITIAL Fox application before the platform famously spread to Mustang/Capri in 1979+ creating iconic Fox-body Mustang era (1979-1993). Fairmont was effectively 'test bed' vehicle for Fox-body before performance Mustang application. Fairmont replaced Ford Maverick (Batch 58 vaz530 Falcon-Maverick lineage reference).
Fox-body platform heritage (major Ford architecture through 1980s): Fairmont 1978-1983 (initial), Mercury Zephyr 1978-1983 (sister), Mustang Fox-body 1979-1993 (iconic 14-year Mustang generation), Mercury Capri Fox-body 1979-1986, Ford LTD mid-size 1979-1986 (Batch 57 vaz526 reference for LTD naming evolution), Mercury Marquis 1979-1986, Ford Thunderbird 1980-1988, Mercury Cougar 1980-1988.
Fairmont body styles: 2-door coupe (sport), 4-door sedan (family/commuter), 4-door station wagon (Squire trim with faux woodgrain panels). Fairmont Futura sport trim featured aerodynamic styling with distinctive hood/grille/bumper treatment that was Ford design studio experimentation later influencing aerodynamic Ford styling 1980s (Taurus 1986 etc).
Fairmont engines: 2.3L Lima I4 (88 HP base 4-cyl - famous Ford Lima 2.3L used Mustang/Capri/Fox-body 1974-1997 made at Lima Engine Plant Ohio), 3.3L (200 CID) Falcon Six I6 (~88-94 HP - continued Falcon Six I6 engine family from Batch 58 vaz530 Falcon reference - engine originated in Ford Falcon 1960 and continued across Ford vehicles through 1980s), 5.0L V8 Windsor (302 V8 ~140 HP optional 1981+ - famous Ford small block Batch 57 vaz525/vaz526 reference for LTD/LTD II heritage and Batch 58 vaz530 Falcon reference for small block V8 origin).
Transmissions: 3-speed manual (column-shifted), 4-speed manual (floor-shifted), C-4 3-speed automatic (standard 1978-1980), AOD 4-speed automatic with overdrive (late Fairmont years 1980+ - famous Ford automatic used across Fox-body vehicles including Mustang through 1990s). RWD only. Trim levels: Base, Futura (sport with aerodynamic styling), Squire (wagon premium).
Discontinuation 1983: Fairmont replaced by Ford Tempo 1984-1994 (FWD departure from Fairmont's RWD heritage following industry trend toward FWD compacts). Compact car lineage: Falcon 1960-1970 → Maverick 1970-1977 → Fairmont 1978-1983 → Tempo 1984-1994.
Radius arm definition: front suspension control arm located below vehicle connecting front wheel/spindle to vehicle frame. Locates the front wheel LONGITUDINALLY (front-to-back direction) resisting braking/acceleration forces. Functions: (1) Wheel location (maintains position front-to-back), (2) Braking force resistance (withstands forward push when brakes applied), (3) Acceleration force resistance (withstands rearward push under acceleration), (4) Suspension geometry (maintains caster angle for steering feel/stability), (5) Dampening (reduces wheel hop and suspension noise).
Fairmont suspension: MacPherson strut front suspension (modern suspension design from European/Japanese influence used across Fox-body platform including Mustang Fox-body). Radius arm connects lower control arm pivot to frame mounting bracket located behind wheel well.
Construction: stamped steel arm (heavy-duty), rubber bushings at both ends (primary wear item providing pivot movement and dampening), mounting points (one end to lower control arm pivot, other to frame bracket), forward mounting bracket, specific bolt hole pattern for Fox-body platform.
Common failure modes: (1) Bushing wear (MOST COMMON - rubber bushings degrade over decades causing wheel position imprecision and suspension noise), (2) Cracked bracket (frame mounting cracks from stress and age), (3) Bent arm (impact damage from pothole or curb strike), (4) Rust/corrosion (salt-belt areas), (5) Stripped bolt holes, (6) Broken mounting welds.
Inspection signs: loose/wandering steering feel, clunking sound from front suspension over bumps, wheel position visibly wrong, vibration during braking, tire wear pattern issues (inner edge wear from misalignment), excessive movement at wheel.
Replacement is moderate-to-difficult DIY (~3-5 hours): support on jack stands, remove wheel, locate radius arm, remove mounting bolts both ends, remove old arm, install new arm, tighten to specifications. WHEEL ALIGNMENT REQUIRED after replacement (caster/camber affected).
| Detail | Description |
|---|---|
| Ford Fairmont 1978-1983 (All Years) | Fox-body 1st generation |
| Trim Specific: | |
| Base / Futura (Sport) / Squire (Wagon) | Same radius arm typically |
| Engine Configurations: | |
| 2.3L Lima I4 Equipped | Standard arm |
| 3.3L Falcon Six I6 Equipped | Standard arm |
| 5.0L V8 Windsor Equipped (1981+ Optional) | May have heavy-duty variant |
| Position Specific: | |
| Driver Side (Left) | Specific configuration |
| Passenger Side (Right) | Mirror configuration |
| Body Style: | |
| 2-Door Coupe, 4-Door Sedan, Station Wagon | Same arm typically |
| Sister Vehicle: | |
| Mercury Zephyr 1978-1983 | Same platform (often interchanges) |
| Cross-Compatibility: | |
| Mustang Fox-Body 1979-1993 Early Years | Some sharing through Fox-body architecture |
| NOT Compatible: Ford Maverick (1970-1977) | Different platform (predecessor) |
| NOT Compatible: Ford Tempo (1984-1994) | Different FWD platform (successor) |
Call (240) 301-0095. Critical questions: (1) Year (1978-1983). (2) Driver or passenger side. (3) Engine (5.0L V8 may have heavy-duty variant arm). (4) Body style (coupe/sedan/wagon usually same).
| Part Type | Front suspension radius arm / control arm |
|---|---|
| Vehicle | Ford Fairmont 1978-1983 |
| Production | 6 years US |
| Platform | Fox-body 1st generation |
| Sister | Mercury Zephyr 1978-1983 |
| Predecessor | Ford Maverick 1970-1977 |
| Successor | Ford Tempo 1984-1994 |
| Compact Lineage | Falcon → Maverick → Fairmont → Tempo |
| Fox Body Family | Mustang/Capri/LTD/Marquis/T-Bird/Cougar |
| Body Styles | Sedan | coupe | wagon (Squire) |
| Trim Levels | Base | Futura (sport) | Squire (wagon) |
| Engines | 2.3L Lima I4 | 3.3L Falcon Six I6 | 5.0L V8 Windsor |
| Transmissions | C-4 3-spd | AOD 4-spd | manuals |
| Drivetrain | RWD only |
| Suspension | MacPherson strut front |
| Function | Locates wheel longitudinally |
| Construction | Stamped steel arm | rubber bushings |
| Common Failure | Bushing wear (most common) |
| Approximate Weight | 5 to 10 lbs |
Contact (240) 301-0095 within 15 days of delivery.
