TRZ Motorsports Anti-Roll Bar - Chassis Mount - 1 5/8" Crossmember Included - Single Tube (1971 - 1976 Impala / Caprice - B-Body) - 321-203
Single-Tube Chassis-Mounted Anti-Roll Bar for 1971 - 1976 Impala & Caprice (B-Body)
The TRZ Motorsports 321-203 Single-Tube Chassis-Mounted Anti-Roll Bar is engineered for 1971 - 1976 Chevrolet B-Body platforms including Impala and Caprice drag builds. Designed to eliminate chassis twist, this system ensures even rear tire loading, improved traction, and straighter, more consistent launches.
This version includes a strong 1.625" chrome-moly crossmember that welds between the frame rails or roll cage. The ARB mounts directly to the crossmember for maximum rigidity - ideal for high-horsepower street/strip or full race applications.
The bar features 1.625" chrome-moly tubing paired with CNC-machined billet steel arms, providing reliable torsional stability for builds up to roughly 1800 HP. The kit uses pre-set center-to-center link distances optimized for B-body geometry. TRZ may contact you if verification is needed.
Each system includes billet end caps, adjustable ARB links, and all required mounting hardware for a complete and durable installation.
Performance Highlights
- Chassis-mounted design with included 1.625" chrome-moly crossmember
- Single-tube 1.625" chrome-moly anti-roll bar
- CNC-machined billet steel ARB arms
- Pre-determined link spacing matched to B-Body geometry
- Includes billet end caps, links, and all hardware
- Eliminates chassis twist for consistent drag launches
- Supports drag applications up to ~1800 HP
Quick Specs
- Vehicle Application: 1971 - 1976 Chevrolet Impala / Caprice
- ARB Style: Single-tube standard ARB
- Main Tube: 1.625" chrome-moly
- Mount Type: Chassis mount with included crossmember
- Arms: CNC-machined billet steel
- Includes: Crossmember, ARB links, billet end caps, hardware
- Part Number: 321-203
Fitment
- 1971 Chevrolet Impala
- 1972 Chevrolet Impala
- 1973 Chevrolet Impala
- 1974 Chevrolet Impala
- 1975 Chevrolet Impala
- 1976 Chevrolet Impala
- 1971 Chevrolet Caprice
- 1972 Chevrolet Caprice
- 1973 Chevrolet Caprice
- 1974 Chevrolet Caprice
- 1975 Chevrolet Caprice
- 1976 Chevrolet Caprice
Frequently Asked Questions
Is the single-tube ARB strong enough for big B-Body builds?
Yes. The 1.625" chrome-moly tube with billet steel arms is suitable for drag cars making up to roughly 1800 HP.
Why choose a chassis-mounted ARB over an under-housing setup?
A chassis mount offers the highest rigidity and best control of chassis twist - ideal for heavy, high-power B-body platforms.
Why Buy from Beefcake Racing?
Beefcake Racing provides expert support, fast shipping, and verified TRZ components. For help choosing the right B-Body ARB setup, contact sales@beefcakeracing.com or call 1-855-827-7223.
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