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UMI lower A-Arms are fabricated from USA DOM tubing with CNC notched tube ends for a precision fit. They are jig built to maintain accuracy and bolt on correctly every time. All critical areas are TIG welded for superior strength and a clean look. UMI’s lower A-Arms also feature improved ball joint angle for lowered vehicles and the design provides additional tire clearance. UMI P/N 3031 lower a-arms include greaseable fluted polyurethane bushings for a smooth quiet ride. They come preloaded with polyurethane bump stops, steering stops and premium ball joints. UMI’s extensive testing on the street, drag strip and skid pad ensures a quality product able to with stand all types of abuse. UMI lower A-Arms are designed to work with factory springs, lowering springs and most coil over kits without changing the a-arms. For exceptional handling and performance we recommend combining with UMI upper a-arms, part # 3033-2. UMI’s lower a-arms are shipped fully assembled and ready for installation. Designed and manufactured with pride in Philipsburg, PA - USA.
Alignment Components
Alignment components at Black Ops Auto Works include camber kits, caster kits, adjustable control arms, toe links, and shock mounts and camber plates built to correct suspension geometry and reduce uneven tire wear. Shop billet control arms, cam bolt kits, and adjustable arms from SPC Performance, AAD, Fox, and more. Black Ops Auto Works carries 1,367 alignment component SKUs across street, off-road, and towing platforms including Jeep, Dodge, GM trucks, Honda and Acura, and Toyota and Lexus. What This Collection Covers This collection combines five related alignment and suspension geometry categories: alignment kits, caster kits, control arms, camber kits, and shock mounts and camber plates. Product Types in This Collection Shoppers will find cam bolt and cam bracket kits for camber and caster correction, adjustable billet upper and lower control arms, rear toe links, and strut mounts. Camber and Caster Correction Camber kits and caster kits use cam bolts or adjustable bushing...
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Control Arms
Control arms for lifted trucks, SRT and Hellcat platforms, and off-road builds are stocked at Black Ops Auto Works. Shop tubular steel upper control arms, billet adjustable control arms, rear toe links, camber arm kits, and vehicle-specific control arm sets for Jeep Grand Cherokee and Trackhawk, Dodge Durango, Charger, Challenger, 300, and Magnum, Toyota 4Runner and FJ Cruiser, Lexus GX460 and GX470, Ford Mustang, and GM 1500 trucks. Every product is filterable by year, make, model, trim, and lift height so the correct control arm ships the first time. Black Ops Auto Works carries 789 control arm SKUs across upper, lower, adjustable, and toe link categories. What This Collection Covers Control arms connect the wheel hub and knuckle assembly to the vehicle frame and control wheel travel through compression and droop. Worn OEM control arms with loose ball joints or deteriorated bushings cause vague steering, uneven tire wear, and handling inconsistency. This collection covers arm ...
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Suspension
Suspension parts and complete kits for cars, trucks, SUVs, Jeeps, and off-road builds are stocked at Black Ops Auto Works. Shop coilovers, lowering springs, lift kits, leveling kits, shocks and struts, sway bars, control arms, tie rods, ball joints, bushings, chassis bracing, alignment hardware, air suspension, and complete stage kits from Bilstein, KW, Ohlins, Fox, KING, ICON, BC Racing, Silvers, Eibach, H&R, Swift Springs, Whiteline, Energy Suspension, Moog, SPC Performance, Rough Country, ReadyLIFT, BDS, Skyjacker, Air Lift, Firestone, and Black Ops Auto Works. Start with a matched shock and spring package or a full coilover kit, then layer in sway bars, chassis bracing, and camber adjustment hardware. Every part is filterable by year, make, model, trim, and drivetrain to confirm fitment before ordering. What This Category Covers Suspension is the highest-leverage handling upgrade on any vehicle. A properly matched shock, spring, and sway bar package produces measurable i...
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UMI Performance
UMI Performance for GM A-Body, G-Body, F-Body Camaro and Firebird, B-Body, H-Body, CTS-V, and LS-powered muscle builds are stocked at Black Ops Auto Works. Shop control arms, sway bars, torque arms, panhard bars, K-members, braces, springs, crossmembers, bushings, and coilover conversion hardware. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 219 UMI Performance SKUs across vehicle-specific performance categories. About UMI Performance UMI Performance builds suspension, chassis, and drivetrain support parts for classic and late-model American muscle. The current catalog is especially deep for GM A-Body, G-Body, F-Body, and related domestic rear-wheel-drive platforms. Vehicle-Specific Selection Use the application details on each listing to narrow the selection to the exact platform. Product availability and specifications vary by model year and configuration. What This Collect...
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