TRZ Motorsports Anti-Roll Bar - Chassis Mount - 1 5/8" Crossmember Included - Twin Tube (1971 - 1976 Impala / Caprice - B-Body) - 321-203-TT
Twin-Tube Chassis-Mounted Anti-Roll Bar for 1971 - 1976 Impala & Caprice (B-Body)
The TRZ Motorsports 321-203-TT Anti-Roll Bar is the extreme-duty Twin Tube "Girth Brooks" version engineered for high-horsepower 1971 - 1976 Impala and Caprice B-body platforms. This ultra-rigid ARB setup is built to eliminate chassis twist, stabilize launches, and deliver maximum traction consistency in heavy, powerful drag builds.
This chassis-mounted system includes a 1.625" chrome-moly crossmember that welds between the frame rails or into the roll cage. The ARB mounts directly to this structure for unmatched rigidity - critical for big-body cars putting serious power to the ground.
The Twin Tube bar features a 1.625" chrome-moly inner tube housed inside a 2.25" chrome-moly outer tube, paired with CNC-machined billet steel arms. This design provides the highest torsional strength TRZ offers, making it ideal for extreme horsepower applications.
TRZ uses pre-set center-to-center link distances based on B-body geometry and may contact you for verification if needed. The kit includes billet end caps, ARB links, and all required hardware for a complete installation.
Once installed, this ARB keeps the chassis square under load, delivering straighter launches, even rear tire loading, and significantly improved repeatability at the track.
Performance Highlights
- Twin Tube "Girth Brooks" construction for maximum rigidity
- 1.625" inner + 2.25" outer chrome-moly tubes
- Chassis-mounted system with included 1.625" crossmember
- CNC-machined billet steel ARB arms
- Pre-determined link spacing for B-body geometry
- Includes billet end caps, ARB links, and all mounting hardware
- Eliminates chassis twist for consistent drag launches
- Engineered for extreme horsepower B-body applications
Quick Specs
- Vehicle Application: 1971 - 1976 Chevrolet Impala / Caprice
- ARB Style: Twin Tube "Girth Brooks"
- Main Tubes: 1.625" inner + 2.25" outer 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-TT
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
Who should choose the Twin Tube ARB?
It's the best option for extreme-horsepower B-body builds, radial cars, and any setup requiring the highest torsional strength.
Why a chassis-mounted system?
Chassis mounting provides the most rigid attachment possible, improving launch stability on heavy, high-power cars like B-bodies.
Why Buy from Beefcake Racing?
Beefcake Racing offers expert drag-race guidance, verified TRZ components, and fast shipping. For support choosing the best ARB for your Impala or Caprice, contact sales@beefcakeracing.com or call 1-855-827-7223.
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