TRZ Motorsports Lower Control Arms for Coil-Overs (1963 - 1982 Corvette C2 / C3) - 320-CO-LOWERS
Coil-Over Ready Chrome-Moly Lower Control Arms for 1963 - 1982 Corvette
The TRZ Motorsports Lower Control Arms for Coil-Overs (Part #320-CO-LOWERS) deliver a major suspension upgrade for your 1963 - 1982 Corvette C2/C3. Built from TIG-welded chrome-moly tubing, these lower A-arms are engineered for improved strength, more precise geometry, and compatibility with all coil-over shocks using a lower bearing-style mount.
Each control arm assembly includes ball joints, CNC-machined cross-shafts, Delrin bushings, and complete mounting hardware. When paired with the full TRZ A-arm set, you gain 6 degrees of positive caster - a major benefit for straight-line stability, braking performance, and predictable steering feel.
These arms are designed to replace factory components with no chassis modifications. For best results, TRZ recommends using them together with the complete matched A-arm set. The pictured A-arm configuration is intended for stock spindles, but TRZ can build alternative spindle configurations upon request.
Performance Features
- TIG-welded chrome-moly tubing for strength and reduced weight
- Compatible with all coil-over shocks using a lower bearing-style mount
- Includes ball joints, Delrin bushings, CNC'd cross-shafts, and hardware
- Built-in 6° positive caster when used with full TRZ A-arm set
- Direct replacement for factory lower control arms - no modifications required
- Designed as part of a matched TRZ A-arm system for best geometry
Quick Specs
- Application: 1963 - 1982 Corvette C2/C3
- Material: TIG-welded chrome-moly tubing
- Bushings: Delrin
- Included Components: Ball joints, bushings, cross-shafts, hardware
- Shock Compatibility: All coil-overs with lower bearing-style mount
- Caster Gain: +6° with complete TRZ A-arm set
- Part Number: 320-CO-LOWERS
Fitment
- 1963 Chevrolet Corvette (C2)
- 1964 Chevrolet Corvette (C2)
- 1965 Chevrolet Corvette (C2)
- 1966 Chevrolet Corvette (C2)
- 1967 Chevrolet Corvette (C2)
- 1968 Chevrolet Corvette (C3)
- 1969 Chevrolet Corvette (C3)
- 1970 Chevrolet Corvette (C3)
- 1971 Chevrolet Corvette (C3)
- 1972 Chevrolet Corvette (C3)
- 1973 Chevrolet Corvette (C3)
- 1974 Chevrolet Corvette (C3)
- 1975 Chevrolet Corvette (C3)
- 1976 Chevrolet Corvette (C3)
- 1977 Chevrolet Corvette (C3)
- 1978 Chevrolet Corvette (C3)
- 1979 Chevrolet Corvette (C3)
- 1980 Chevrolet Corvette (C3)
- 1981 Chevrolet Corvette (C3)
- 1982 Chevrolet Corvette (C3)
Frequently Asked Questions
Do these lower control arms require modifications to install?
No. They are designed as a direct replacement for the factory arms with no cutting or chassis changes required.
Will these work with any coil-over shock?
Yes. As long as the coil-over uses a lower bearing-style mount, it will fit these control arms.
Why Buy from Beefcake Racing?
Beefcake Racing is an authorized TRZ Motorsports dealer offering fast shipping, competitive pricing, and real gearhead technical support. For questions about Corvette C2/C3 suspension upgrades, email sales@beefcakeracing.com or call 1-855-827-7223.
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