{"product_id":"umi-performance-70-81-gm-f-body-tubular-upper-lower-a-arm-kit","title":"UMI Performance 70-81 GM F-Body Tubular Upper \u0026 Lower A-arm Kit","description":"UMI’s 2nd Generation F-Body a-arms are perfect for the F-Body enthusiast seeking to improve the performance and appearance of their front suspension. This kit features caster relocation of both the upper and lower ball joints to enhance steering feel and improve high speed stability. As designed, the caster range is 5-7 degrees. The spindle pin location remains unchanged so fender clearance is like stock. The upper a-arms include CrMo offset cross shafts to reduce the amount of shims required when setting camber. A pancake style polyurethane bump stop and high quality ball joint is included. The heavy duty lower spring bucket accepts factory and aftermarket coil springs as well as the popular hybrid coilover units. Laser cut UMI reinforcement plates add a great appearance and excellent strength. UMI’s double shear sway bar end links are included and work nicely with UMI P\/N 4035 sway bar and also most aftermarket stock eyelet type sway bars. Available in UMI red or gloss black powder coat. 100% designed, manufactured and raced with pride in Philipsburg, PA - USA.\n\u003cp\u003eUpgrade the front suspension of your 1970-1981 GM F-Body with the UMI Performance 265153-R second-generation tubular upper and lower A-arm kit. Designed for enthusiasts seeking improved handling, steering response, and suspension appearance, this complete kit provides caster relocation at both the upper and lower ball joints. The revised geometry delivers an adjustable caster range of approximately 5 to 7 degrees, helping improve steering feel and high-speed stability while retaining the factory spindle pin location for stock-like fender clearance.\u003cbr\u003eThe tubular upper A-arms include chrome-moly offset cross shafts that reduce the shims needed during camber adjustment. A pancake-style polyurethane bump stop and high-quality ball joint are included for dependable suspension control. The heavy-duty lower spring bucket accepts factory and aftermarket coil springs, along with popular hybrid coilover assemblies. Laser-cut UMI reinforcement plates add structural strength and a clean, performance-oriented appearance.\u003cbr\u003eDouble-shear sway bar end links are included and are compatible with the UMI Performance P\/N 4035 sway bar as well as most aftermarket sway bars using stock-style eyelets. Finished in red powder coat, the UMI Performance 265153-R kit is designed, manufactured, and raced in Philipsburg, Pennsylvania. This suspension package fits 1977-1981 Pontiac Firebird applications and is engineered for a durable, performance-focused installation.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eApplication: Fits 1977-1981 Pontiac Firebird and compatible GM F-Body applications\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSuspension design: Tubular upper and lower A-arms improve front-end performance and appearance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eCaster adjustment: Relocated upper and lower ball joints provide approximately 5 to 7 degrees of caster range\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSteering stability: Revised geometry improves steering feel and high-speed stability\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eClearance: Factory spindle pin location helps maintain stock-like fender clearance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eUpper A-arms: Chrome-moly offset cross shafts reduce the shims required for camber adjustment\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eBump stop: Includes a pancake-style polyurethane bump stop\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSpring compatibility: Heavy-duty lower spring bucket accepts factory, aftermarket, and hybrid coilover springs\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eReinforcement: Laser-cut reinforcement plates provide added strength and a finished appearance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eSway bar compatibility: Includes double-shear end links compatible with UMI Performance P\/N 4035 and most stock-eyelet aftermarket sway bars\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFinish: Red powder-coat finish\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eManufacturing: Designed, manufactured, and raced in Philipsburg, Pennsylvania\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\nBuick LeSabre Base 1978\u003cbr\u003e\nBuick LeSabre Base 1979\u003cbr\u003e\nBuick LeSabre Base 1980\u003cbr\u003e\nBuick LeSabre Base 1981\u003cbr\u003e\nBuick LeSabre Collector's Edition 1985\u003cbr\u003e\nBuick LeSabre Custom 1978\u003cbr\u003e\nBuick LeSabre Custom 1982\u003cbr\u003e\nBuick LeSabre Custom 1983\u003cbr\u003e\nBuick LeSabre Custom 1984\u003cbr\u003e\nBuick LeSabre Custom 1985\u003cbr\u003e\nBuick LeSabre Estate Wagon 1985\u003cbr\u003e\nBuick LeSabre Limited 1979\u003cbr\u003e\nBuick LeSabre Limited 1980\u003cbr\u003e\nBuick LeSabre Limited 1981\u003cbr\u003e\nBuick LeSabre Limited 1982\u003cbr\u003e\nBuick LeSabre Limited 1983\u003cbr\u003e\nBuick LeSabre Limited 1984\u003cbr\u003e\nBuick LeSabre Limited 1985\u003cbr\u003e\nBuick LeSabre Limited Edition F\/E 1982\u003cbr\u003e\nBuick LeSabre Sport 1978\u003cbr\u003e\nBuick LeSabre Sport 1979\u003cbr\u003e\nBuick LeSabre Sport 1980\u003cbr\u003e\nBuick LeSabre Sport 1981\u003cbr\u003e\nBuick Roadmaster Base 1992\u003cbr\u003e\nBuick Roadmaster Base 1993\u003cbr\u003e\nBuick Roadmaster Base 1994\u003cbr\u003e\nBuick Roadmaster Base 1995\u003cbr\u003e\nBuick Roadmaster Collector's Edition 1996\u003cbr\u003e\nBuick Roadmaster Estate Wagon 1991\u003cbr\u003e\nBuick Roadmaster Estate Wagon 1992\u003cbr\u003e\nBuick Roadmaster Estate Wagon 1993\u003cbr\u003e\nBuick Roadmaster Estate Wagon 1994\u003cbr\u003e\nBuick Roadmaster Estate Wagon 1995\u003cbr\u003e\nBuick Roadmaster Estate Wagon Collector's Edition 1996\u003cbr\u003e\nBuick Roadmaster Limited 1992\u003cbr\u003e\nBuick Roadmaster Limited 1993\u003cbr\u003e\nBuick Roadmaster Limited 1994\u003cbr\u003e\nBuick Roadmaster Limited 1995\u003cbr\u003e\nBuick Roadmaster Limited Collector's Edition 1996\u003cbr\u003e\nChevrolet Camaro Base 1970\u003cbr\u003e\nChevrolet Camaro Base 1971\u003cbr\u003e\nChevrolet Camaro Base 1972\u003cbr\u003e\nChevrolet Camaro Base 1973\u003cbr\u003e\nChevrolet Camaro Base 1974\u003cbr\u003e\nChevrolet Camaro Base 1975\u003cbr\u003e\nChevrolet Camaro Base 1976\u003cbr\u003e\nChevrolet Camaro Base 1977\u003cbr\u003e\nChevrolet Camaro Base 1978\u003cbr\u003e\nChevrolet Camaro Base 1979\u003cbr\u003e\nChevrolet Camaro Base 1980\u003cbr\u003e\nChevrolet Camaro Berlinetta 1979\u003cbr\u003e\nChevrolet Camaro Berlinetta 1980\u003cbr\u003e\nChevrolet Camaro Berlinetta 1981\u003cbr\u003e\nChevrolet Camaro LT 1973\u003cbr\u003e\nChevrolet Camaro LT 1974\u003cbr\u003e\nChevrolet Camaro LT 1975\u003cbr\u003e\nChevrolet Camaro LT 1976\u003cbr\u003e\nChevrolet Camaro LT 1977\u003cbr\u003e\nChevrolet Camaro LT 1978\u003cbr\u003e\nChevrolet Camaro LT Rally Sport 1976\u003cbr\u003e\nChevrolet Camaro LT Rally Sport 1977\u003cbr\u003e\nChevrolet Camaro LT Rally Sport 1978\u003cbr\u003e\nChevrolet Camaro Rally Sport 1976\u003cbr\u003e\nChevrolet Camaro Rally Sport 1977\u003cbr\u003e\nChevrolet Camaro Rally Sport 1978\u003cbr\u003e\nChevrolet Camaro Rally Sport 1979\u003cbr\u003e\nChevrolet Camaro Rally Sport 1980\u003cbr\u003e\nChevrolet Camaro RS 1970\u003cbr\u003e\nChevrolet Camaro RS 1971\u003cbr\u003e\nChevrolet Camaro RS 1972\u003cbr\u003e\nChevrolet Camaro RS 1973\u003cbr\u003e\nChevrolet Camaro RS 1975\u003cbr\u003e\nChevrolet Camaro Sport 1981\u003cbr\u003e\nChevrolet Camaro SS 1970\u003cbr\u003e\nChevrolet Camaro SS 1971\u003cbr\u003e\nChevrolet Camaro SS 1972\u003cbr\u003e\nChevrolet Camaro Z28 1970\u003cbr\u003e\nChevrolet Camaro Z28 1971\u003cbr\u003e\nChevrolet Camaro Z28 1972\u003cbr\u003e\nChevrolet Camaro Z28 1973\u003cbr\u003e\nChevrolet Camaro Z28 1974\u003cbr\u003e\nChevrolet Camaro Z28 1977\u003cbr\u003e\nChevrolet Camaro Z28 1978\u003cbr\u003e\nChevrolet Camaro Z28 1979\u003cbr\u003e\nChevrolet Camaro Z28 1980\u003cbr\u003e\nChevrolet Camaro Z28 1981\u003cbr\u003e\nChevrolet Impala SS 1994\u003cbr\u003e\nChevrolet Impala SS 1995\u003cbr\u003e\nChevrolet Impala SS 1996\u003cbr\u003e\nChevrolet Nova Base 1975\u003cbr\u003e\nChevrolet Nova Base 1976\u003cbr\u003e\nChevrolet Nova Base 1977\u003cbr\u003e\nChevrolet Nova Base 1978\u003cbr\u003e\nChevrolet Nova Base 1979\u003cbr\u003e\nChevrolet Nova Concours 1976\u003cbr\u003e\nChevrolet Nova Concours 1977\u003cbr\u003e\nChevrolet Nova Custom 1975\u003cbr\u003e\nChevrolet Nova Custom 1978\u003cbr\u003e\nChevrolet Nova Custom 1979\u003cbr\u003e\nChevrolet Nova LN 1975\u003cbr\u003e\nChevrolet Nova Police 1975\u003cbr\u003e\nChevrolet Nova Police 1976\u003cbr\u003e\nChevrolet Nova Police 1977\u003cbr\u003e\nChevrolet Nova Police 1978\u003cbr\u003e\nChevrolet Nova Rally 1977\u003cbr\u003e\nChevrolet Nova Rally 1978\u003cbr\u003e\nChevrolet Nova Rally 1979\u003cbr\u003e\nChevrolet Nova SS 1976\u003cbr\u003e\nPontiac Bonneville Base 1977\u003cbr\u003e\nPontiac Bonneville Base 1978\u003cbr\u003e\nPontiac Bonneville Base 1979\u003cbr\u003e\nPontiac Bonneville Base 1980\u003cbr\u003e\nPontiac Bonneville Base 1981\u003cbr\u003e\nPontiac Bonneville Brougham 1977\u003cbr\u003e\nPontiac Bonneville Brougham 1978\u003cbr\u003e\nPontiac Bonneville Brougham 1979\u003cbr\u003e\nPontiac Bonneville Brougham 1980\u003cbr\u003e\nPontiac Bonneville Brougham 1981\u003cbr\u003e\nPontiac Bonneville Safari 1978\u003cbr\u003e\nPontiac Bonneville Safari 1979\u003cbr\u003e\nPontiac Bonneville Safari 1980\u003cbr\u003e\nPontiac Bonneville Safari 1981\u003cbr\u003e\nPontiac Catalina Base 1977\u003cbr\u003e\nPontiac Catalina Base 1978\u003cbr\u003e\nPontiac Catalina Base 1979\u003cbr\u003e\nPontiac Catalina Base 1980\u003cbr\u003e\nPontiac Catalina Base 1981\u003cbr\u003e\nPontiac Catalina Safari 1977\u003cbr\u003e\nPontiac Catalina Safari 1978\u003cbr\u003e\nPontiac Catalina Safari 1979\u003cbr\u003e\nPontiac Catalina Safari 1980\u003cbr\u003e\nPontiac Catalina Safari 1981\u003cbr\u003e\nPontiac Firebird Base 1970\u003cbr\u003e\nPontiac Firebird Base 1971\u003cbr\u003e\nPontiac Firebird Base 1972\u003cbr\u003e\nPontiac Firebird Base 1973\u003cbr\u003e\nPontiac Firebird Base 1974\u003cbr\u003e\nPontiac Firebird Base 1975\u003cbr\u003e\nPontiac Firebird Base 1976\u003cbr\u003e\nPontiac Firebird Base 1977\u003cbr\u003e\nPontiac Firebird Base 1978\u003cbr\u003e\nPontiac Firebird Base 1979\u003cbr\u003e\nPontiac Firebird Base 1980\u003cbr\u003e\nPontiac Firebird Base 1981\u003cbr\u003e\nPontiac Firebird Esprit 1970\u003cbr\u003e\nPontiac Firebird Esprit 1971\u003cbr\u003e\nPontiac Firebird Esprit 1972\u003cbr\u003e\nPontiac Firebird Esprit 1973\u003cbr\u003e\nPontiac Firebird Esprit 1974\u003cbr\u003e\nPontiac Firebird Esprit 1975\u003cbr\u003e\nPontiac Firebird Esprit 1976\u003cbr\u003e\nPontiac Firebird Esprit 1977\u003cbr\u003e\nPontiac Firebird Esprit 1978\u003cbr\u003e\nPontiac Firebird Esprit 1979\u003cbr\u003e\nPontiac Firebird Esprit 1980\u003cbr\u003e\nPontiac Firebird Esprit 1981\u003cbr\u003e\nPontiac Firebird Formula 1970\u003cbr\u003e\nPontiac Firebird Formula 1971\u003cbr\u003e\nPontiac Firebird Formula 1972\u003cbr\u003e\nPontiac Firebird Formula 1973\u003cbr\u003e\nPontiac Firebird Formula 1974\u003cbr\u003e\nPontiac Firebird Formula 1975\u003cbr\u003e\nPontiac Firebird Formula 1976\u003cbr\u003e\nPontiac Firebird Formula 1977\u003cbr\u003e\nPontiac Firebird Formula 1978\u003cbr\u003e\nPontiac Firebird Formula 1979\u003cbr\u003e\nPontiac Firebird Formula 1980\u003cbr\u003e\nPontiac Firebird Formula 1981\u003cbr\u003e\nPontiac Firebird Trans Am 1970\u003cbr\u003e\nPontiac Firebird Trans Am 1971\u003cbr\u003e\nPontiac Firebird Trans Am 1972\u003cbr\u003e\nPontiac Firebird Trans Am 1973\u003cbr\u003e\nPontiac Firebird Trans Am 1974\u003cbr\u003e\nPontiac Firebird Trans Am 1975\u003cbr\u003e\nPontiac Firebird Trans Am 1976\u003cbr\u003e\nPontiac Firebird Trans Am 1977\u003cbr\u003e\nPontiac Firebird Trans Am 1978\u003cbr\u003e\nPontiac Firebird Trans Am 1979\u003cbr\u003e\nPontiac Firebird Trans Am 1980\u003cbr\u003e\nPontiac Firebird Trans Am 1981","brand":"UMI Performance","offers":[{"title":"Default Title","offer_id":67603295961404,"sku":"umi265153-R","price":1437.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1865\/9007\/files\/478373739d3b9110531e9e507e4397a3.jpg?v=1790744045","url":"https:\/\/necycleshop.com\/products\/umi-performance-70-81-gm-f-body-tubular-upper-lower-a-arm-kit","provider":"NE Cycle Shop","version":"1.0","type":"link"}