Product Description:
-
Hawks Motorsports is proud to offer our clients this : 1978-1988 GM G-Body Front Lower A-Arm Hardware Kit from UMI Performance.
UMI Performance #3011 provides the high-strength fasteners needed to mount both front lower A-arms to the frame of compatible Buick Regal, Chevrolet El Camino, Malibu and Monte Carlo, GMC Caballero, Oldsmobile Cutlass, Pontiac Bonneville and Grand Prix models.
The kit contains four 12mm metric Grade 10.9 mounting bolts, eight flat washers and four nylon-insert locking nuts. Two pivot bolts are used for each front lower A-arm, providing the hardware required for both the driver- and passenger-side control arms.
All supplied components feature a zinc-coated finish that helps resist corrosion while providing a clean, finished appearance.
UMI-3011 is compatible with applicable UMI Performance lower A-arms, original GM lower control arms, factory-style replacements and other aftermarket lower A-arms designed around the factory 12mm mounting arrangement.
This kit is ideal when installing new front lower A-arms or replacing original pivot fasteners that are rusted, seized, bent, worn, damaged or missing. It is suitable for factory restorations, suspension rebuilds, street-performance vehicles, Pro-Touring builds, autocross cars, road-course vehicles and compatible drag-racing applications.
Complete Kit Contents
- Four 12mm metric Grade 10.9 lower A-arm mounting bolts
- Eight matching flat washers
- Four matching nylon-insert locking nuts
- Zinc-coated finish on all supplied components
- Pivot hardware for both front lower A-arms
- Hardware for the driver- and passenger-side mounting positions
Compatible Front Lower A-Arms
UMI-3011 is compatible with:
- Applicable UMI Performance front lower A-arms
- Original GM front lower A-arms
- Factory-style replacement lower control arms
- Aftermarket tubular lower A-arms using the factory mounting arrangement
- Lower A-arms equipped with compatible rubber bushings
- Lower A-arms equipped with compatible polyurethane bushings
- Lower A-arms equipped with compatible Delrin bushings
- Lower A-arms designed for factory-style coil springs
- Compatible lower A-arms designed for coilover conversions
Always confirm that the control-arm bushing sleeves and frame mounting holes are designed for the supplied 12mm fasteners.
Important Position Information
On the confirmed G-body applications, UMI-3011 installs at the front lower A-arm pivot locations where the lower control arms attach to the vehicle’s frame.
UMI-3011 is not:
- Front upper A-arm hardware
- Rear lower control-arm hardware
- Rear upper control-arm hardware
- Body-mount hardware
- Ball-joint hardware
- Shock mounting hardware
- Coil-spring hardware
- Sway-bar mounting hardware
- Steering-linkage hardware
UMI Performance #3012 is the corresponding front upper A-arm hardware kit for compatible G-body applications.
UMI Performance #3001 is designed for the rear lower control arms, while #3002 supplies rear upper- and lower-control-arm hardware. These kits should not be confused with UMI-3011.
4. KEY FEATURES
- Designed for confirmed 1978-1988 GM G-body applications
- Fits applicable Buick Regal models
- Fits applicable Chevrolet El Camino models
- Fits applicable Chevrolet Malibu models
- Fits applicable Chevrolet Monte Carlo models
- Fits applicable GMC Caballero models
- Fits applicable Oldsmobile Cutlass models
- Fits applicable Pontiac Bonneville models
- Fits applicable Pontiac Grand Prix models
- Designed specifically for the front lower A-arms
- Mounts the front lower A-arms to the vehicle’s frame
- Supplies pivot hardware for both front lower A-arms
- Includes four 12mm mounting bolts
- Metric Grade 10.9 bolt construction
- Includes eight matching flat washers
- Includes four matching nylon-insert locking nuts
- Nylon locking inserts help resist loosening from normal vibration
- Zinc-coated finish
- Zinc coating helps protect against corrosion
- Supplies hardware for the driver and passenger sides
- Compatible with applicable UMI Performance lower A-arms
- Compatible with original GM lower A-arms
- Compatible with factory-style replacement lower A-arms
- Compatible with many aftermarket tubular lower A-arms
- Compatible with arms using the correct factory-style 12mm mounting arrangement
- Suitable for compatible rubber-bushed lower A-arms
- Suitable for compatible polyurethane-bushed lower A-arms
- Suitable for compatible Delrin-bushed lower A-arms
- Suitable for factory-style spring applications
- Suitable for compatible coilover lower A-arm applications
- Direct bolt-on configuration for verified applications
- Replaces rusted, seized, bent, worn, damaged or missing original fasteners
- Suitable for factory restoration projects
- Suitable for front-suspension rebuilds
- Suitable for street-performance vehicles
- Suitable for Pro-Touring builds
- Suitable for autocross and road-course applications
- Suitable for compatible drag-racing applications
- Does not include front upper A-arm hardware
- Does not include rear control-arm hardware
- Does not include ball-joint hardware
- Does not include shock, spring, steering or sway-bar hardware
- One complete kit services both front lower A-arms
- UMI Performance part #3011
- Hawks Motorsports part #UMI-3011
5. MODEL INTERCHANGE AND FITMENT
UMI Performance catalogs #3011 for the following rear-wheel-drive GM G-body models.
Fitment is determined by the front lower A-arm and frame mounting arrangement. It is not normally affected by engine size, transmission type, brake configuration, body style or trim package when the vehicle retains the compatible factory mounting dimensions.
Buick Regal Applications
- 1978 Buick Regal
- 1979 Buick Regal
- 1980 Buick Regal
- 1981 Buick Regal
- 1982 Buick Regal
- 1983 Buick Regal
- 1984 Buick Regal
- 1985 Buick Regal
- 1986 Buick Regal
- 1987 Buick Regal
Includes applicable rear-wheel-drive G-body:
- Regal
- Regal Limited
- Regal Sport Coupe
- Regal T-Type
- Turbo T
- Grand National
- 1987 GNX
- Other Regal trim packages retaining the compatible factory lower A-arm mounting arrangement
Chevrolet El Camino Applications
- 1978 Chevrolet El Camino
- 1979 Chevrolet El Camino
- 1980 Chevrolet El Camino
- 1981 Chevrolet El Camino
- 1982 Chevrolet El Camino
- 1983 Chevrolet El Camino
- 1984 Chevrolet El Camino
- 1985 Chevrolet El Camino
- 1986 Chevrolet El Camino
- 1987 Chevrolet El Camino
Includes applicable:
- El Camino
- El Camino Conquista
- El Camino Royal Knight
- El Camino SS
- El Camino Choo Choo Customs SS
- Other El Camino trim packages retaining the compatible factory lower A-arm mounting arrangement
Chevrolet Malibu Applications
- 1978 Chevrolet Malibu
- 1979 Chevrolet Malibu
- 1980 Chevrolet Malibu
- 1981 Chevrolet Malibu
- 1982 Chevrolet Malibu
- 1983 Chevrolet Malibu
Includes applicable:
- Malibu
- Malibu Classic
- Malibu sedan
- Malibu coupe
- Malibu station wagon
- Malibu police and fleet applications
- Other Malibu trim packages retaining the compatible factory lower A-arm mounting arrangement
Chevrolet Monte Carlo Applications
- 1978 Chevrolet Monte Carlo
- 1979 Chevrolet Monte Carlo
- 1980 Chevrolet Monte Carlo
- 1981 Chevrolet Monte Carlo
- 1982 Chevrolet Monte Carlo
- 1983 Chevrolet Monte Carlo
- 1984 Chevrolet Monte Carlo
- 1985 Chevrolet Monte Carlo
- 1986 Chevrolet Monte Carlo
- 1987 Chevrolet Monte Carlo
- 1988 Chevrolet Monte Carlo
Includes applicable rear-wheel-drive G-body:
- Monte Carlo
- Monte Carlo Landau
- Monte Carlo LS
- Monte Carlo CL
- Monte Carlo SS
- Monte Carlo SS Aerocoupe
- Other Monte Carlo trim packages retaining the compatible factory lower A-arm mounting arrangement
GMC Caballero Applications
- 1978 GMC Caballero
- 1979 GMC Caballero
- 1980 GMC Caballero
- 1981 GMC Caballero
- 1982 GMC Caballero
- 1983 GMC Caballero
- 1984 GMC Caballero
- 1985 GMC Caballero
- 1986 GMC Caballero
- 1987 GMC Caballero
Includes applicable:
- Caballero
- Caballero Amarillo
- Caballero Diablo
- Other Caballero trim packages retaining the compatible factory lower A-arm mounting arrangement
Oldsmobile Cutlass Applications
- 1978 Oldsmobile Cutlass
- 1979 Oldsmobile Cutlass
- 1980 Oldsmobile Cutlass
- 1981 Oldsmobile Cutlass
- 1982 Oldsmobile Cutlass
- 1983 Oldsmobile Cutlass
- 1984 Oldsmobile Cutlass
- 1985 Oldsmobile Cutlass
- 1986 Oldsmobile Cutlass
- 1987 Oldsmobile Cutlass
- 1988 Oldsmobile Cutlass
Includes applicable rear-wheel-drive G-body:
- Cutlass
- Cutlass Supreme
- Cutlass Supreme Classic
- Cutlass Salon
- Cutlass Calais G-body applications
- Cutlass Cruiser
- Hurst/Olds
- Oldsmobile 442
- Other Cutlass trim packages retaining the compatible factory lower A-arm mounting arrangement
The 1988 application is limited to the rear-wheel-drive G-body Cutlass Supreme Classic configuration. It does not establish fitment for front-wheel-drive Cutlass Ciera, Cutlass Calais or W-body Cutlass Supreme models.
Pontiac Bonneville Applications
- 1982 Pontiac Bonneville
- 1983 Pontiac Bonneville
- 1984 Pontiac Bonneville
- 1985 Pontiac Bonneville
- 1986 Pontiac Bonneville
Includes applicable rear-wheel-drive G-body:
- Bonneville
- Bonneville Model G
- Bonneville LE
- Bonneville Brougham
- Other Bonneville trim packages retaining the compatible factory lower A-arm mounting arrangement
This coverage applies specifically to the rear-wheel-drive 1982-1986 G-body Bonneville. It does not establish fitment for earlier full-size or later front-wheel-drive Bonneville models.
Pontiac Grand Prix Applications
- 1978 Pontiac Grand Prix
- 1979 Pontiac Grand Prix
- 1980 Pontiac Grand Prix
- 1981 Pontiac Grand Prix
- 1982 Pontiac Grand Prix
- 1983 Pontiac Grand Prix
- 1984 Pontiac Grand Prix
- 1985 Pontiac Grand Prix
- 1986 Pontiac Grand Prix
- 1987 Pontiac Grand Prix
Includes applicable rear-wheel-drive G-body:
- Grand Prix
- Grand Prix LJ
- Grand Prix SJ
- Grand Prix LE
- Grand Prix Brougham
- 1986 Grand Prix 2+2 Aerocoupe
- Other Grand Prix trim packages retaining the compatible factory lower A-arm mounting arrangement
Important Fitment Notes
- UMI-3011 mounts the two front lower A-arms to the frame.
- One kit services both front lower control arms.
- Each lower A-arm uses two frame pivot bolts.
- The supplied fasteners are 12mm metric Grade 10.9 bolts.
- Confirm that the lower A-arm bushing sleeves accept the supplied 12mm fasteners.
- Compatible with applicable factory and aftermarket front lower A-arms.
- Confirm dimensions when using custom-fabricated or heavily modified control arms.
- Inspect the frame mounting brackets and pivot holes before installation.
- Cracked, distorted, corroded or elongated mounting holes must be properly repaired before installing new hardware.
- Previous collision damage or frame repairs may affect fitment and front-end alignment.
- Engine-swap frame components or modified mounting brackets may use different dimensions.
- UMI-3011 does not mount the body to the frame.
- UMI-3011 does not include upper A-arm hardware.
- UMI-3011 does not include rear control-arm hardware.
- UMI-3011 does not include ball-joint, shock, spring, steering or sway-bar hardware.
- UMI Performance currently lists Pontiac G-body coverage as 1982-1986 Bonneville and 1978-1987 Grand Prix.
- Pontiac LeMans and Pontiac Grand Am models are not included in UMI’s current published UMI-3011 fitment guide and should not be added without manufacturer confirmation.
- Only rear-wheel-drive G-body versions of the listed models are covered.
- Later front-wheel-drive vehicles using similar model names are not covered.
6. INSTALLATION NOTES
- Review the applicable GM service manual and lower-control-arm manufacturer’s instructions before installation.
- Confirm that the vehicle is one of the listed rear-wheel-drive G-body applications.
- Confirm that the lower A-arms require 12mm mounting fasteners.
- Park the vehicle on a solid, level surface.
- Chock the rear wheels before raising the front of the vehicle.
- Safely raise and support the vehicle using properly rated lifting equipment.
- Support the vehicle beneath approved frame lifting points.
- Never work beneath a vehicle supported only by a hydraulic jack.
- Front coil springs and coilover assemblies store substantial energy and can cause serious injury if improperly handled.
- Safely unload and control the front suspension before removing a lower A-arm.
- Remove the front wheel to provide safe access to the control-arm mounting locations.
- Support the lower A-arm and spindle assembly during disassembly.
- Follow the applicable procedure for disconnecting the sway-bar end link, shock, spring or coilover, steering linkage and lower ball joint.
- Replacing one lower A-arm at a time can help preserve component orientation and provide an installation reference.
- Record the direction and position of the original lower A-arm pivot bolts before removal.
- Inspect the original fasteners for bending, damaged threads, corrosion or movement inside the mounting holes.
- Inspect the frame brackets for cracking, corrosion, distortion or elongated holes.
- Inspect the lower A-arm bushing sleeves before installing the supplied fasteners.
- Confirm that the bushing sleeves and frame mounting holes accept the 12mm bolts.
- Do not force a bolt through a misaligned bushing sleeve or damaged frame bracket.
- Correct the component alignment before inserting the mounting bolts.
- Apply bushing lubricant only when directed by the lower-control-arm manufacturer.
- Position the lower A-arm in the frame and initially install the pivot hardware loosely.
- Confirm that each bolt passes completely through the frame brackets and bushing sleeve.
- Verify full thread engagement through each nylon-insert locking nut.
- Do not position the nylon locking insert over an unthreaded portion of the bolt.
- Do not install fasteners with damaged, contaminated or cross-threaded threads.
- Follow the applicable service manual or lower-control-arm manufacturer’s tightening procedure.
- UMI does not publish one universal torque specification for UMI-3011 across every compatible factory and aftermarket lower A-arm.
- Do not select a torque specification based only on the bolt diameter or metric property class.
- Rubber- and polyurethane-bushed lower A-arms may require final tightening with the suspension positioned at normal ride height.
- Tightening certain bushed control arms while the suspension is hanging can create unwanted bushing preload.
- Follow the control-arm manufacturer’s instructions when using Delrin, bearing or solid-pivot lower A-arms.
- Reconnect the lower ball joint, steering linkage, spring or coilover, shock and sway-bar components according to the applicable instructions.
- Confirm that castle nuts are secured with the correct cotter pins where required.
- Turn the steering from lock to lock after installation.
- Check clearance around the wheels, tires, brake hoses, steering linkage, sway bar, frame, springs, shocks and surrounding chassis components.
- Verify that both lower A-arms move through their intended suspension travel without binding.
- Complete a professional front-end alignment after removing or replacing either lower A-arm.
- Reinspect the fasteners after the initial road test.
- Periodically inspect the lower A-arm hardware and frame mounting points as part of normal suspension maintenance.
