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Toyota - 4Runner

25480 - 4RUNNER & FJ UCA (PAIR)


There are (x3) types of this part in use and each can be identified using the information below.
(A.) New, maintenance free ball joint version features an all black housing.
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(B.) Maintenance free ball joint version features no zerk fitting.
Download Instructions PDF
(C.) Greasable ball joint version features zerk fitting.
Download Instructions PDF

Designed, engineered, tested, and assembled in Colorado; SPC Performance’s adjustable upper control arms are loaded with the features you need. Improve suspension travel, handling, and tire wear while you center your tire in the wheel well to maximize clearance for your oversized tires. Now equipped with maintenance free ball joints and xAxis™ sealed flex joints in bonded rubber sleeves, this arm will both correct alignment angles and restore factory ride quality. SPC's forged steel design provides the strength and durability needed for the most demanding environments. (Sold in pairs.)

  • Get the most suspension travel available: SPC’s arms have improved clearance to get around the spring bucket and 80° of articulation in its ball joint. Now equipped with free pivoting xAxis joints, SPC's arm gives you maximum droop travel. More travel than any other ball joint or mono ball equipped arm on the market.

  • Get your drivability and tracking back: When you lift your truck you affect caster and camber. SPC’s arms have +2° of caster built into them. Using its patented ball joint design, the arm will get you 0° to +4° of caster and ±2° of camber. This adjustability allows you to put your alignment angles back to specification.

  • Get your tire where you want it in the wheel well: Use adjustment in the control arm and on the OE lower cams to maximize alignment angles and move oversized tires forward in the wheel well to minimize or avoid fender trimming.

  • On the adjustable ball joint SPC uses hex chromate free finish and offers a 700hr salt spray test for the best corrosion protection available.

  • Do you need replacement cams for the lower control arm? Check out SPC p/n 25440 to replace corroded or ‘frozen’ cam bolt assemblies. Do you need heavy duty rear lower control arms? Check out SPC p/n 25950, which are more than 2x stronger than the OE arms.

    xAxis™ Replacement Bushing Kit Available

    Adjustment range: Camber ±2.0°
    Caster 0.0° to +4.0°

    Patent No. US 7,513,514 B1

    Replacement Boot Kit Available (B & C Versions Only!)

    Replacement Ball Joint Kit Available

    Upgrade xAxis(TM) Replacement Bushing Kit Available

    Replacement Bushing Kit Available


    Check out our installation video for this part:


    Find out more about ball joint articulation when you lift your vehicle in this video:



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    Please Note: While SPC does not offer direct on-site service of vehicles, our experienced techs are here to help answer any alignment questions you may have through our email form and FAQ section.


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