{"product_id":"arb-old-man-emu-upper-control-arm-2024-tacoma-land-cruiser-gx-550","title":"ARB Old Man Emu Upper Control Arm - 2024+ Tacoma \/ Land Cruiser \/ GX 550 \/ 2025+ 4Runner","description":"\u003c!-- split --\u003e\n\u003cul\u003e\n\u003cli\u003eARB Old Man Emu (OME) Upper Control Arm for the \u003cstrong\u003e2024+ Toyota Tacoma\u003c\/strong\u003e, \u003cstrong\u003e2025+ Toyota 4Runner\u003c\/strong\u003e, \u003cstrong\u003e2024+ Land Cruiser LC250\u003c\/strong\u003e, and \u003cstrong\u003e2024+ Lexus GX 550\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003eCorrects caster alignment after lifting — brings alignment cams back into acceptable range\u003c\/li\u003e\n\u003cli\u003eTubular steel construction with forged eyelet and ball joint housings\u003c\/li\u003e\n\u003cli\u003eFree-pivoting, maintenance-free GIIRO bushing — no greasing required at the bushing\u003c\/li\u003e\n\u003cli\u003eHeavy-duty greaseable ball joint with protective cap\u003c\/li\u003e\n\u003cli\u003eWheel alignment required after installation | Check fender clearance with aftermarket tires\u003c\/li\u003e\n\u003cli\u003e3-year ARB warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c!-- split --\u003e\u003c!-- splitnew --\u003e\n\u003ch2 style=\"text-align: center;\"\u003eARB Old Man Emu UCA — Proper Geometry for Your Lifted Tacoma, Land Cruiser \u0026amp; GX 550\u003c\/h2\u003e\n\n\u003cp style=\"text-align:center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0176\/5743\/0070\/files\/arb-uca0021-1.jpg\" alt=\"ARB Old Man Emu Upper Control Arm UCA0021 - 2024+ Toyota Tacoma \/ Land Cruiser - StickerFab\" style=\"max-width:100%;height:auto;border-radius:6px;\"\u003e\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eARB Old Man Emu Upper Control Arm (UCA0021)\u003c\/strong\u003e is the suspension geometry fix for the \u003cstrong\u003e2024+ Toyota Tacoma\u003c\/strong\u003e, \u003cstrong\u003eLand Cruiser LC250\u003c\/strong\u003e, and \u003cstrong\u003eLexus GX 550\u003c\/strong\u003e. Upper control arms live between the vehicle frame and the knuckle spindle — when your vehicle is lifted, the factory UCA geometry falls out of spec and pulls the caster angle out of the acceptable range. Symptoms include vague steering, reduced high-speed stability, and uneven tire wear. The ARB OME UCA corrects that geometry, restoring proper caster and giving your lifted build the handling it should have.\u003c\/p\u003e\n\n\u003ch3\u003eConstruction\u003c\/h3\u003e\n\u003cp style=\"text-align:center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0176\/5743\/0070\/files\/arb-uca0021-2.jpg\" alt=\"ARB OME UCA0021 Upper Control Arm detail view - StickerFab\" style=\"max-width:100%;height:auto;border-radius:6px;\"\u003e\u003cbr\u003e\u003csmall style=\"color:#666;\"\u003eTubular steel construction with forged eyelet and ball joint housings\u003c\/small\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eTubular steel body\u003c\/strong\u003e — stronger than the factory stamped arm without the weight penalty of solid billet\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eForged eyelet and ball joint housings\u003c\/strong\u003e — not welded fabrication; forged housings provide consistent material density and superior strength at the critical stress points\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGIIRO bushing\u003c\/strong\u003e — free-pivoting, grease and maintenance-free. No zerk fitting to forget about, no degradation from missed service intervals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeavy-duty greaseable ball joint\u003c\/strong\u003e — serviceable with a protective cap for trail and off-road durability\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp style=\"text-align:center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0176\/5743\/0070\/files\/arb-uca0021-3.jpg\" alt=\"ARB OME UCA0021 Tacoma installed angle - StickerFab\" style=\"max-width:100%;height:auto;border-radius:6px;\"\u003e\u003cbr\u003e\u003csmall style=\"color:#666;\"\u003eARB OME UCA0021 installed — correct geometry, increased tire clearance\u003c\/small\u003e\u003c\/p\u003e\n\n\u003ch3\u003eGIIRO Bushing — What It Is\u003c\/h3\u003e\n\n\u003cp style=\"text-align:center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0176\/5743\/0070\/files\/arb-uca0021-4.jpg\" alt=\"ARB OME UCA0021 ball joint and bushing close-up - StickerFab\" style=\"max-width:100%;height:auto;border-radius:6px;\"\u003e\u003cbr\u003e\u003csmall style=\"color:#666;\"\u003eGIIRO bushing and greaseable ball joint detail\u003c\/small\u003e\u003c\/p\u003e\n\u003cp\u003eThe GIIRO (Grease Independent Inner Ring Oscillation) bushing is ARB\/OME's proprietary bushing design. Traditional rubber or polyurethane bushings require periodic lubrication and degrade over time with heat and UV exposure. The GIIRO bushing is self-lubricating and maintenance-free — it pivots freely without binding and doesn't require greasing to maintain performance.\u003c\/p\u003e\n\n\u003cp style=\"text-align:center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0176\/5743\/0070\/files\/arb-uca0021-5.jpg\" alt=\"ARB OME UCA0021 tubular steel construction - StickerFab\" style=\"max-width:100%;height:auto;border-radius:6px;\"\u003e\u003cbr\u003e\u003csmall style=\"color:#666;\"\u003eARB OME UCA0021 tubular construction detail\u003c\/small\u003e\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePart number: UCA0021\u003c\/li\u003e\n\u003cli\u003eMaterial: Steel (tubular body, forged housings)\u003c\/li\u003e\n\u003cli\u003eColor: Black\u003c\/li\u003e\n\u003cli\u003eBushing: GIIRO — free-pivoting, maintenance-free\u003c\/li\u003e\n\u003cli\u003eBall joint: Heavy-duty, greaseable with protective cap\u003c\/li\u003e\n\u003cli\u003eProp 65: No\u003c\/li\u003e\n\u003cli\u003eWarranty: 3 years\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFitment\u003c\/h3\u003e\n\u003cp\u003eFits: 2024+ Toyota Tacoma (all trims, Gas and Hybrid) • 2024+ Toyota Land Cruiser LC250 (all trims) • 2024+ Lexus GX 550 (Luxury and Premium trims). Wheel alignment required after installation. Check fender clearance when running aftermarket tires and wheels.\u003c\/p\u003e\n\n\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhy do I need a UCA when I lift?\u003c\/strong\u003e\u003cbr\u003eThe factory upper control arm is designed for the OEM ride height. When you lift, the caster angle changes — the factory arm can't compensate. An aftermarket UCA like this one is designed with corrected geometry so your caster stays in spec at your lifted height, maintaining proper steering feel, stability, and tire wear.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is the GIIRO bushing and why does it matter?\u003c\/strong\u003e\u003cbr\u003eGIIRO (Grease Independent Inner Ring Oscillation) is ARB\/OME's maintenance-free bushing design. It pivots freely without requiring grease or periodic service. Unlike rubber or poly bushings that can dry out and bind, the GIIRO maintains consistent performance without maintenance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes the ball joint need to be greased?\u003c\/strong\u003e\u003cbr\u003eThe ball joint (not the bushing) is greaseable with a standard zerk fitting and includes a protective cap. The bushing itself is maintenance-free. Service the ball joint periodically, especially if you use the vehicle heavily off-road.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs a wheel alignment required?\u003c\/strong\u003e\u003cbr\u003eYes — a wheel alignment is required after installing any aftermarket UCA. Budget for this as part of your installation cost.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eShould I check fender clearance?\u003c\/strong\u003e\u003cbr\u003eYes — when running aftermarket tires and\/or wheels, check that you have adequate clearance between the tire and the arm and fender liner through the full range of suspension travel before hitting the trail.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDoes this fit the Tacoma Hybrid?\u003c\/strong\u003e\u003cbr\u003eYes — fitment covers both gas and hybrid Tacoma trims for 2024.\u003c\/p\u003e","brand":"ARB","offers":[{"title":"Default Title","offer_id":53014290006335,"sku":"ARBUCA0021","price":512.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0176\/5743\/0070\/files\/arb-uca0021-1.jpg?v=1779031471","url":"https:\/\/www.stickerfab.com\/en-gb\/products\/arb-old-man-emu-upper-control-arm-2024-tacoma-land-cruiser-gx-550","provider":"StickerFab","version":"1.0","type":"link"}