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Bring alignment adjustment back into range after changing front suspension geometry
Old Man Emu UCA0037 is a vehicle-specific front upper-control-arm pair for the current Toyota 4Runner platform. The tubular steel arms, forged housings, sealed ball joints, and free-pivoting GIIRO bushings support alignment correction and suspension movement without routine bushing or ball-joint greasing.
Key Features
- Old Man Emu UCA0037: Vehicle-specific tubular upper-control-arm design
- Forged eyelet and ball-joint housings add strength at loaded interfaces
- Free-pivoting GIIRO bushings are sealed and maintenance-free
- Heavy-duty sealed ball joints sit beneath protective caps
- Helps return alignment cams to an acceptable adjustment range
- Supports additional coilover and tire clearance when used in an approved suspension setup
- Front pair finished in black
Fitment
Use Old Man Emu UCA0037 only for the applications below. Confirm every listed qualifier and exclusion.
| Years | Make | Model | Details |
|---|---|---|---|
| 2025-2026 | Toyota | 4Runner | front independent suspension; pair; alignment required after installation; Excludes: Applications not listed in the current ARB USA guide |
Specifications
| Detail | Value |
|---|---|
| Brand | Old Man Emu |
| Manufacturer Part Number | UCA0037 |
| Product Type | Control Arms |
| Position | Front upper |
| Construction | Tubular steel with forged eyelet and ball-joint housings |
| Bushings | Sealed maintenance-free GIIRO |
| Ball Joints | Heavy-duty sealed under protective caps |
| Finish | Black |
| Quantity | Pair |
| Alignment | Required after installation |
| Warranty | Three years per ARB USA listing |
| Prop 65 | No per ARB USA listing |
What's Included
- Left and right front upper control arms for Old Man Emu UCA0037
- Installed GIIRO bushings
- Installed sealed ball joints and protective caps
- Not included: Coilovers, springs, shocks, wheels, tires, and alignment service
About Old Man Emu
Old Man Emu is ARB's suspension brand, developing vehicle-specific springs, dampers, and control arms for controlled geometry, load management, and off-road durability.
Related Parts
- Pair these arms only with suspension components verified for the same 2025-2026 4Runner configuration, then complete a professional alignment.
FAQ
What is the UCA0037?It is a front upper-control-arm pair for restoring usable front alignment range and clearance on the listed 4Runner.
What vehicles does this part fit?ARB USA lists the 2025 and later Toyota 4Runner; this store mapping is limited to verified 2025-2026 model years.
What is included in the package?The package contains a left and right arm with installed sealed bushings and ball joints.
What materials and finish are used?The arms use tubular steel with forged housings, sealed GIIRO bushings, sealed ball joints, and a black finish.
Is an alignment required after installation?An alignment is required when the component changes front suspension geometry. For other applications, verify driveline or axle geometry and follow the vehicle service procedure.
Is professional installation recommended?Professional installation and a complete wheel alignment are required.
What warranty applies?ARB USA lists a three-year warranty subject to current terms and exclusions.
What should be checked after installation?Recheck fastener torque, component clearance, lubrication where applicable, and safe suspension or driveline operation after the initial road test.
Installation Instructions
- Confirm the exact 2025-2026 Toyota 4Runner application and compare both arms with the vehicle before disassembly.
- Support the vehicle safely, unload the front suspension, and remove the original upper control arms using the Toyota service procedure.
- Install the left and right control arms without damaging the sealed bushings, ball-joint boots, wiring, brake hoses, or surrounding components.
- Tighten all fasteners at the specified suspension position and torque values, then check tire, wheel, coilover, and fender clearance through steering and travel.
- Perform a complete wheel alignment immediately after installation and verify safe steering and suspension operation.
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