TRZ Motorsports Tubular Front Control Arms - Stock Spring Style Complete Kit (1964 - 1972 Chevelle A-Body) - 317-PRO-STK
Complete Stock-Spring Tubular Control Arm Kit for 1964 - 1972 Chevelle A-Body
The TRZ Motorsports 317-PRO-STK Complete Kit is the ultimate front suspension upgrade for drag racers running factory-style front springs on 1964 - 1972 Chevrolet A-Body platforms. Built from TIG-welded chrome-moly tubing, this system delivers maximum strength, lighter weight, and race-ready geometry engineered specifically for straight-line performance.
This complete kit includes PRO Series tubular upper control arms featuring chrome-moly rod-ends and billet cross-shafts, along with stock-spring-style lower arms equipped with ball joints and bushings. When used together, the system provides 6 - 7 degrees of positive caster, improving high-speed stability, steering return, and weight transfer at launch. Uppers or lowers alone cannot achieve these caster values - this full kit is required for proper geometry.
The lower control arms utilize dropped spring perches to accommodate the wide mix of A-Body coil springs, many of which are taller than OEM. Depending on your spring choice, this kit may naturally lower the front end between 1.5" and 1.75", creating an aggressive drag stance without needing coilovers.
TRZ also offers coilover-specific lowers for 2" - 3" drop applications, and all PRO Series uppers include travel limiters to fine-tune upward travel for maximum weight transfer.
Important: TRZ A-arms are engineered for drag racing only. They do not include sway bar tabs and are not designed for street use.
Performance Highlights
- Complete matched kit with uppers and lowers for correct geometry
- TIG-welded chrome-moly construction for maximum durability
- 6 - 7 degrees of positive caster achievable with the full system
- Up to 15 lbs per-side weight reduction compared to stock arms
- Stock-spring lower arms accept all factory-style springs and shocks
- Dropped spring pockets allow compatibility with taller coils
- 1.5" - 1.75" front-end drop depending on spring selection
- Travel limiters included for launch and weight transfer tuning
- Designed for 0 - 10 degrees spindle caster in drag applications
Quick Specs
- Application: 1964 - 1972 Chevrolet A-Body
- Kit Includes: Upper & lower tubular control arms
- Construction: TIG-welded chrome-moly
- Caster Range: 6 - 7 degrees (with full kit)
- Spring Compatibility: Factory-style stock springs
- Expected Drop: 1.5" - 1.75" depending on spring
- Use Case: Drag racing only (no sway bar tabs)
- Part Number: 317-PRO-STK
Fitment
- Chevrolet Chevelle / Malibu
- 1964 Chevrolet Chevelle / Malibu
- 1965 Chevrolet Chevelle / Malibu
- 1966 Chevrolet Chevelle / Malibu
- 1967 Chevrolet Chevelle / Malibu
- 1968 Chevrolet Chevelle / Malibu
- 1969 Chevrolet Chevelle / Malibu
- 1970 Chevrolet Chevelle / Malibu
- 1971 Chevrolet Chevelle / Malibu
- 1972 Chevrolet Chevelle / Malibu
- Chevrolet El Camino (A-Body)
- 1964 Chevrolet El Camino
- 1965 Chevrolet El Camino
- 1966 Chevrolet El Camino
- 1967 Chevrolet El Camino
- 1968 Chevrolet El Camino
- 1969 Chevrolet El Camino
- 1970 Chevrolet El Camino
- 1971 Chevrolet El Camino
- 1972 Chevrolet El Camino
Frequently Asked Questions
Will this complete kit achieve the full 6 - 7 degrees of caster?
Yes. This is only possible with the complete upper and lower kit. Uppers or lowers alone will not reach these caster values.
Are these arms suitable for street driving?
No. TRZ A-arms are drag-race-only components and lack sway bar tabs. They are not intended for street applications.
Why Buy from Beefcake Racing?
Beefcake Racing is your trusted source for TRZ Motorsports drag racing suspension. We offer expert fitment support, fast shipping, and the performance knowledge needed to set up your Chevelle, Malibu, or El Camino correctly. Contact our tech team at sales@beefcakeracing.com or call 1-855-827-7223 for assistance.
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