TRZ Motorsports Lower Control Arms for Stock Springs (1963 - 1982 Corvette C2 / C3) - 320-STK-LOWERS
High-Strength Chrome-Moly Lower Control Arms for 1963 - 1982 C2/C3 Corvette
The TRZ Motorsports Lower Control Arms for Stock Springs (Part #320-STK-LOWERS) are engineered as a premium, lightweight replacement for factory C2/C3 Corvette components. Built from TIG-welded chrome-moly tubing, these lower arms deliver superior rigidity, reduced deflection, and improved suspension geometry for both street and race applications.
Each pair includes assembled ball joints, Delrin control arm bushings, precision-machined CNC cross-shafts, and full mounting hardware. These arms are designed to work with factory-style springs and shocks, as well as T-bar bolt-in coilover kits from QA1, Viking, and AFCO - making them a versatile upgrade for builders upgrading their C2 or C3 suspension.
When used as part of the complete TRZ A-arm package, the system provides 6 degrees of built-in positive caster for sharper handling and improved stability. Although sway bar tabs were previously included, they are no longer integrated into this updated design. These lower control arms are engineered to replace OEM components with no modifications required.
Note: Arms shown in some photos are designed for stock spindles. TRZ can build versions for TRZ spindles or A/F/X-body drum or disc spindles upon request.
Performance Features
- TIG-welded chrome-moly tubing for superior strength
- Includes assembled ball joints and Delrin bushings
- CNC cross-shafts for precise alignment and durability
- Direct replacement with no chassis modifications
- Works with stock spring/shock or T-bar style bolt-in coilover kits
- Offers 6° positive caster when used with full TRZ A-arm set
- Updated design no longer includes sway bar tabs
- Custom spindle compatibility available upon request
Quick Specs
- Vehicle: 1963 - 1982 Corvette C2 / C3
- Material: TIG-welded chrome-moly tubing
- Bushings: Delrin
- Cross-Shafts: CNC machined
- Included: (2) lower control arms, ball joints, bushings, hardware
- Spring Compatibility: Stock spring/shock or T-bar bolt-in coilovers
- Built-In Caster: 6° (full A-arm set only)
- Part Number: 320-STK-LOWERS
Fitment
- 1963 Chevrolet Corvette
- 1964 Chevrolet Corvette
- 1965 Chevrolet Corvette
- 1966 Chevrolet Corvette
- 1967 Chevrolet Corvette
- 1968 Chevrolet Corvette
- 1969 Chevrolet Corvette
- 1970 Chevrolet Corvette
- 1971 Chevrolet Corvette
- 1972 Chevrolet Corvette
- 1973 Chevrolet Corvette
- 1974 Chevrolet Corvette
- 1975 Chevrolet Corvette
- 1976 Chevrolet Corvette
- 1977 Chevrolet Corvette
- 1978 Chevrolet Corvette
- 1979 Chevrolet Corvette
- 1980 Chevrolet Corvette
- 1981 Chevrolet Corvette
- 1982 Chevrolet Corvette
Frequently Asked Questions
Do these lower control arms require any modifications to install?
No. They are designed as direct replacements for OEM control arms with no cutting or welding required.
Can these be used with aftermarket coilovers?
Yes. They work with stock springs/shocks or any T-bar style bolt-in coilover system from QA1, Viking, or AFCO.
Why Buy from Beefcake Racing?
Beefcake Racing offers genuine TRZ Motorsports suspension components with fast shipping and real gearhead tech support. For help choosing the right C2/C3 Corvette control arms or confirming spindle compatibility, email sales@beefcakeracing.com or call 1-855-827-7223.
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