{"product_id":"clayton-premium-rear-uca-gladiator-jt-cor-1910230","title":"Clayton Off Road Premium Long Rear Upper Control Arms for 2020-2026 Jeep Gladiator JT","description":"\u003ch3\u003eIs This for You?\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou're building a long arm JT and want a greaseable, rebuildable adjuster end on your rear upper arms\u003c\/strong\u003e — the Premium spec uses the RJ-331300-102 Narrow Series Johnny Joint with 40° of misalignment and a zerk fitting for field service without pulling the arm.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou want GIIRO compliance at the axle side with Johnny Joint precision at the adjuster\u003c\/strong\u003e — the Premium combines both joint technologies: rebuildable rod end where adjustability matters, maintenance-free GIIRO where NVH isolation and self-centering geometry matter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eYou want the option to convert to full GIIRO adjusters later without replacing the arm\u003c\/strong\u003e — the Premium and Overland+ (COR-1910030) share identical arm bodies and frame brackets; only the adjuster joint differs and is field-swappable.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eThe Result\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eRJ-331300-102 Narrow Series Johnny Joint at the adjuster — 2.5\" forged rod end, 1\" RH thread, 2.625\" body width, 40° misalignment, greaseable and rebuildable.\u003c\/li\u003e\n\u003cli\u003eGIIRO dual-durometer bushing at the axle side — 2-5\/8\" width, 16MM bore, maintenance-free, self-centering through 30° of misalignment.\u003c\/li\u003e\n\u003cli\u003eSolid steel construction with long arm geometry — slim profile for frame and body clearance, corrects rear caster and pinion angle on 3.5\"–6\"+ lifted JT builds.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eThe COR-1910230 Premium long rear upper control arms are engineered for the 2020–2026 Jeep Gladiator JT on long arm suspension systems. The adjuster end uses the RJ-331300-102 Narrow Series Johnny Joint — a 2.5\" forged rod end with 1\" RH thread, 2.625\" body width, and 40° of total misalignment. The narrow profile keeps the adjuster tight to the frame rail and reduces the moment arm under load, while the greaseable zerk allows periodic lubrication and the rebuildable design allows field service without arm replacement. The axle-side mount uses Clayton's GIIRO dual-durometer bushing — a softer outer layer for NVH isolation and a stiffer inner core for lateral load resistance, self-centering through 30° of misalignment without binding through the full droop-to-compression cycle. The arm body uses solid steel construction for a slim profile that clears the frame rail, body tub, and bed structure under full articulation — the same design rationale as the Overland+ version (COR-1910030). Standard tube inserts (1\"x14 RH, 1.5\", 0.156\" wall DOM) are pressed into the tube ends for thread integrity. The arm is adjuster-swappable with the Overland+ version; the frame bracket and arm body are identical. Lifetime warranty. Made in the USA. Sold as a pair.\u003c\/p\u003e\u003ch3\u003eAudit Table\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eDetail\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eCOR-1910230\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePosition\u003c\/td\u003e\n\u003ctd\u003eRear Upper, Long, Pair\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjuster-Side Joint\u003c\/td\u003e\n\u003ctd\u003eRJ-331300-102 Johnny Joint — 2.5\" Narrow Forged Rod End, 1\"-14 RH Thread, 2.625\" Width, 40° Misalignment, Greaseable\/Rebuildable\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAxle-Side Joint\u003c\/td\u003e\n\u003ctd\u003eGIIRO Dual-Durometer Bushing — 2-5\/8\" Width, 16MM Bore, Self-Centering, 30° Misalignment, Maintenance-Free\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTube Inserts\u003c\/td\u003e\n\u003ctd\u003e1\"x14 RH, 1.5\", 0.156\" Wall DOM Tubing\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eJam Nut\u003c\/td\u003e\n\u003ctd\u003e1\"-14 Right Hand Thread\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLift Range\u003c\/td\u003e\n\u003ctd\u003e3.5\" to 6\"+\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjustability\u003c\/td\u003e\n\u003ctd\u003eYes — length-adjustable for pinion angle and caster correction\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAdjuster Swap Compatible\u003c\/td\u003e\n\u003ctd\u003eYes — identical arm to COR-1910030 Overland+; GIIRO adjusters can be installed\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFinish\u003c\/td\u003e\n\u003ctd\u003eBlack Powder Coat\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty\u003c\/td\u003e\n\u003ctd\u003eLifetime\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCountry of Origin\u003c\/td\u003e\n\u003ctd\u003eUSA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Weight\u003c\/td\u003e\n\u003ctd\u003e24 lb\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping Dimensions\u003c\/td\u003e\n\u003ctd\u003e42\" x 11\" x 5\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eVerified Fitment (OFAS Standard)\u003c\/h3\u003e\u003cp\u003e✅ Fits 2020–2026 Jeep Gladiator JT — All Trims (Sport, Sport S, Willys, Overland, Mojave, Rubicon, Texas Trail, High Altitude) — Rear Upper, Long Arm System, 3.5\"–6\"+ Lift\u003cbr\u003e❌ Does NOT fit Jeep Wrangler JK (2007–2018) — different rear suspension geometry\u003cbr\u003e❌ Does NOT fit Jeep Wrangler JL (2018–2026) — different rear upper arm pivot spec\u003cbr\u003e❌ Does NOT bolt into factory short arm bracket — long arm frame bracket required\u003cbr\u003e❌ Does NOT fit front upper control arm positions\u003cbr\u003e❌ Not recommended for lifts under 3.5\"\u003c\/p\u003e\u003ch3\u003eInstallation \u0026amp; Fabrication Notes\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eLong arm bracket required\u003c\/strong\u003e — these arms will NOT install on a factory short arm skid plate or OEM frame bracket. Verify your long arm conversion is in place before ordering.\u003c\/li\u003e\n\u003cli\u003eGrease the RJ-331300-102 Johnny Joint at the zerk fitting before first use and at regular service intervals — do not run dry.\u003c\/li\u003e\n\u003cli\u003eAdjust arm length to approximate pinion angle and caster target before installation — fine-tune at ride height after the vehicle is on the ground.\u003c\/li\u003e\n\u003cli\u003eTorque all pivot bolts at ride height, not at full droop — torquing at droop preloads the GIIRO bushing and accelerates wear.\u003c\/li\u003e\n\u003cli\u003eRear alignment (toe, thrust angle, and pinion angle) must be set after installation.\u003c\/li\u003e\n\u003cli\u003eGIIRO axle-side bushing is maintenance-free — no grease fitting, no service interval at the axle mount.\u003c\/li\u003e\n\u003cli\u003eOn JT models with ADAS: recalibrate rear sensors and cameras after suspension geometry changes per Jeep service procedure.\u003c\/li\u003e\n\u003cli\u003eInspect arm body for contact points against frame, body tub, and bed floor at full droop and full compression before finalizing installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eWheel \u0026amp; Tire Fitment\u003c\/h3\u003e\u003cp\u003eCompatible with standard JT wheel and tire combinations up to 37\" tires on long arm lift systems running 3.5\"–6\"+ of lift. Larger tire fitment (38\"+) may require additional clearance modifications — verify with your builder.\u003c\/p\u003e\u003cblockquote\u003e\n\u003cstrong\u003eEngineering Question:\u003c\/strong\u003e Are you running a factory short arm suspension system on your JT? If yes, these long rear upper arms require a long arm frame bracket — they will not mount to the OEM upper arm bracket. Confirm your long arm conversion is in place and your lift height is 3.5\" or greater before ordering.\u003c\/blockquote\u003e","brand":"Clayton Off Road","offers":[{"title":"Default Title","offer_id":51651320873281,"sku":"COR-1910230","price":549.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0974\/1284\/1793\/files\/COR-1910230-COR.jpg?v=1776527981","url":"https:\/\/obsidianforgedautosupply.com\/products\/clayton-premium-rear-uca-gladiator-jt-cor-1910230","provider":"Obsidian Forged Auto Supply","version":"1.0","type":"link"}