Product Description:
Hawks Motorsports is proud to offer our clients this : 1967-1974 Chevrolet Camaro, Pontiac Firebird, Formula, and Trans Am Front Lower Control Arm Grade 8 Mounting Hardware Kit from UMI Performance.
UMI Performance #4001 provides new high-strength fasteners for attaching compatible front lower control arms to the chassis of applicable 1967-1974 GM F-body vehicles.
The kit includes four 1/2-inch SAE Grade 8 bolts, four flat washers, and four nylon-insert locking nuts. All components feature a zinc coating that helps protect the hardware from corrosion while providing a clean, finished appearance.
UMI-4001 can be used when installing compatible UMI Performance lower A-arms, factory-style lower control arms, or lower control arms from other manufacturers that use the same 1/2-inch mounting dimensions.
This kit supplies the hardware needed for both the driver- and passenger-side lower control-arm pivot locations. It is suitable for restorations, suspension rebuilds, performance-street vehicles, Pro-Touring builds, autocross cars, and other applications where the original fasteners are worn, corroded, damaged, or missing.
Complete Kit Contents
- Four 1/2-inch SAE Grade 8 bolts
- Four flat washers
- Four nylon-insert locking nuts
- Zinc-coated finish on all supplied components
- Hardware for both front lower control arms
Critical 1975-1981 Fitment Information
UMI-4001 is not the correct lower control-arm hardware kit for 1975-1981 Camaro, Firebird, Formula, or Trans Am models.
UMI catalogs #1003 for 1975-1981 F-body front lower control arms. UMI #1003 uses metric M14 bolts rather than the 1/2-inch Grade 8 fasteners supplied with UMI-4001.
Verify the vehicle’s model year and original mounting-hole dimensions before installation.
Additional GM Applications
UMI also catalogs #4001 for numerous 1964-1977 GM A-body vehicles. Depending on the chassis and control-arm design, the kit may be used with compatible front lower A-arms or rear lower control arms.
This listing is for the UMI-4001 fastener kit only.
4. KEY FEATURES
- Designed for compatible GM lower control-arm applications
- Correct F-body application for 1967-1974 models
- Fits 1967-1974 Chevrolet Camaro
- Fits 1967-1974 Pontiac Firebird
- Fits applicable 1970-1974 Firebird Esprit models
- Fits applicable 1970-1974 Firebird Formula models
- Fits applicable 1970-1974 Pontiac Trans Am models
- Designed for front lower control-arm mounting on F-body vehicles
- Supplies hardware for both front lower control arms
- Includes four 1/2-inch bolts
- SAE Grade 8 bolt construction
- Includes four flat washers
- Includes four nylon-insert locking nuts
- Locking nuts help resist loosening under normal suspension movement and vibration
- Zinc-coated finish
- Zinc coating helps protect against corrosion
- Provides a clean, finished appearance
- Suitable for UMI Performance lower A-arms
- Compatible with applicable factory-style lower control arms
- Compatible with many aftermarket lower control arms using the same mounting dimensions
- Suitable for suspension restorations
- Suitable for front-suspension rebuilds
- Suitable for performance-street vehicles
- Suitable for Pro-Touring applications
- Suitable for autocross and road-course builds
- Suitable for drag-racing applications retaining compatible control arms
- Direct bolt-on configuration for verified applications
- Uses imperial 1/2-inch fasteners
- Not interchangeable with UMI #1003 metric M14 hardware
- UMI #1003 is the correct lower-control-arm hardware kit for 1975-1981 F-body applications
- Sold as one complete kit
- UMI Performance part #4001
- Hawks Motorsports part #UMI-4001
5. MODEL INTERCHANGE AND FITMENT
UMI Performance catalogs #4001 for 1967-1969 and 1970-1974 GM F-body vehicles. On these applications, the kit is used at the front lower control-arm mounting locations.
Chevrolet Camaro Applications
- 1967 Chevrolet Camaro
- 1968 Chevrolet Camaro
- 1969 Chevrolet Camaro
- 1970 Chevrolet Camaro
- 1971 Chevrolet Camaro
- 1972 Chevrolet Camaro
- 1973 Chevrolet Camaro
- 1974 Chevrolet Camaro
Includes applicable:
- Camaro Base and Sport Coupe
- Camaro Rally Sport
- Camaro Super Sport
- Camaro Z28
- Camaro Type LT
- Other applicable trim and appearance packages using the compatible front lower control-arm mounting arrangement
Pontiac Firebird Applications
- 1967 Pontiac Firebird
- 1968 Pontiac Firebird
- 1969 Pontiac Firebird
- 1970 Pontiac Firebird
- 1971 Pontiac Firebird
- 1972 Pontiac Firebird
- 1973 Pontiac Firebird
- 1974 Pontiac Firebird
Includes applicable:
- Pontiac Firebird
- Firebird Esprit
- Firebird Formula
- Pontiac Trans Am
Important F-Body Fitment Notes
- UMI-4001 is designed for the front lower control arms on applicable F-body vehicles.
- The kit includes hardware for both the driver and passenger sides.
- The supplied bolts are 1/2-inch SAE Grade 8 fasteners.
- Verify that the chassis and control-arm mounting holes retain the correct original dimensions.
- Confirm compatibility when using modified, custom-fabricated, or non-standard control arms.
- Worn, distorted, elongated, or cracked mounting holes must be repaired before installation.
- Previous collision repairs or chassis modifications may affect alignment and fitment.
- This kit does not replace ball-joint hardware, sway-bar end-link hardware, shock hardware, spring hardware, or upper control-arm mounting hardware.
- UMI-4001 does not fit 1975-1981 F-body lower control-arm mounting locations.
- Use UMI #1003 for applicable 1975-1981 Camaro and Firebird front lower control arms.
- UMI #1003 uses M14 metric fasteners.
- This application does not fit 1982-1992 third-generation Camaro or Firebird models.
- This application does not fit 1993-2002 fourth-generation Camaro or Firebird models.
Additional 1964-1977 GM A-Body Applications
UMI also catalogs #4001 for compatible lower control-arm positions on the following vehicles:
Buick
- 1973-1977 Century
- 1965-1967 Gran Sport
- 1968-1969 GS 350
- 1968-1969 GS 400
- 1970-1972 GS and GS 455
- 1973-1977 Regal
- 1964-1972 Skylark
- 1964-1969 Special
- 1964-1972 Sportwagon
Chevrolet and GMC
- 1964-1977 Chevelle
- 1964-1977 El Camino
- 1973-1976 Laguna
- 1964-1967 and 1973-1977 Malibu
- 1970-1977 Monte Carlo
- 1971-1972 GMC Sprint
Oldsmobile
- 1964-1971 Oldsmobile 442
- 1964-1977 Cutlass
- 1964-1977 F85
- 1964-1972 Vista Cruiser
Pontiac
- 1973-1977 Grand Am
- 1969-1972 Grand Prix
- 1964-1974 GTO
- 1964-1970 Tempest
- 1964-1977 LeMans
Verify the required control-arm position and mounting dimensions before using this universal GM hardware kit on an A-body application.
6. INSTALLATION NOTES
- Review the control-arm manufacturer’s installation instructions before beginning work.
- Verify that UMI-4001 is correct for the vehicle’s model year and control-arm design.
- Confirm that the mounting locations require 1/2-inch fasteners.
- Do not substitute UMI-4001 for the M14 hardware required on 1975-1981 F-body vehicles.
- Park the vehicle on a solid, level surface.
- Safely raise and support the vehicle using properly rated lifting equipment.
- Never work beneath a vehicle supported only by a hydraulic jack.
- Safely contain and support the front coil spring before removing a lower control arm.
- Front coil springs store substantial energy and can cause serious injury if improperly handled.
- Support the lower control arm and steering assembly during removal.
- Install one lower control arm at a time to help preserve reference points and component orientation.
- Inspect the frame mounting brackets and holes for corrosion, cracks, distortion, or elongation.
- Inspect the lower-control-arm bushings and sleeves before installation.
- Do not force a bolt through a misaligned bushing sleeve or chassis mount.
- Position the supplied washers and nylon locking nuts according to the control-arm manufacturer’s directions.
- Make sure the bolt shanks pass properly through the frame mounts and control-arm bushing sleeves.
- Verify that the control arm moves through its intended range without binding.
- Follow the vehicle service manual or control-arm manufacturer’s specified torque procedure.
- UMI directs that final tightening of its polyurethane-bushed lower A-arms be performed with the suspension at normal ride height.
- Final tightening at ride height helps prevent unwanted bushing preload.
- Follow the bushing manufacturer’s instructions when using rubber, Delrin, solid, or bearing-style control-arm pivots.
- Verify that the locking nuts achieve full thread engagement.
- Do not install damaged fasteners or hardware with contaminated threads.
- Complete a professional front-end alignment after lower-control-arm replacement.
- Reinspect all mounting points following the initial road test.
- Periodically inspect the hardware as part of normal suspension maintenance.
