TRZ Motorsports Anti-Roll Bar - Chassis Mount - 1 5/8" Crossmember Included - Twin Tube (1978 - 1988 Impala / Caprice - G-Body) - 319-203-TT
Twin-Tube Chassis-Mounted Anti-Roll Bar for 1978 - 1988 Impala & Caprice (G-Body)
The TRZ Motorsports 319-203-TT Anti-Roll Bar is the heavy-duty Twin Tube "Girth Brooks" version engineered for 1978 - 1988 Impala and Caprice G-body drag applications. This extreme-strength ARB eliminates chassis twist, improves rear tire loading, and delivers harder, straighter launches - crucial for high-power, full-size GM builds.
This chassis-mounted system centers around a robust 1.625" chrome-moly crossmember that welds between the frame rails or integrates into the roll cage. The ARB mounts directly to this structure for maximum rigidity, stabilizing the long G-body chassis under heavy load.
The Twin Tube bar uses a 1.625" chrome-moly inner tube encased by a 2.25" chrome-moly outer tube, paired with CNC-machined billet steel arms. This dual-wall construction offers the highest torsional strength available from TRZ, making it ideal for extreme horsepower applications.
TRZ presets the center-to-center link spacing for G-body geometry and may contact you for verification as needed. The complete kit includes billet end caps, ARB links, and all required mounting hardware.
For racers looking to control chassis flex and maximize traction, the Twin Tube chassis-mount ARB is the most capable option available for the 1978 - 1988 Impala and Caprice platform.
Performance Highlights
- Twin Tube "Girth Brooks" construction for extreme rigidity
- 1.625" inner + 2.25" outer chrome-moly tubing
- Chassis-mounted with 1.625" chrome-moly crossmember included
- CNC-machined billet steel ARB arms
- Pre-set link spacing tuned for 1978 - 1988 G-body geometry
- Includes billet end caps, ARB links, and complete hardware
- Eliminates chassis twist for straighter, more consistent launches
- Ideal for extreme-power Impala/Caprice drag builds
Quick Specs
- Vehicle Application: 1978 - 1988 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 chrome-moly crossmember
- Arms: CNC-machined billet steel
- Includes: Crossmember, links, billet end caps, hardware
- Part Number: 319-203-TT
Fitment
- 1978 Chevrolet Impala
- 1979 Chevrolet Impala
- 1980 Chevrolet Impala
- 1981 Chevrolet Impala
- 1982 Chevrolet Impala
- 1983 Chevrolet Impala
- 1984 Chevrolet Impala
- 1985 Chevrolet Impala
- 1986 Chevrolet Impala
- 1987 Chevrolet Impala
- 1988 Chevrolet Impala
- 1978 Chevrolet Caprice
- 1979 Chevrolet Caprice
- 1980 Chevrolet Caprice
- 1981 Chevrolet Caprice
- 1982 Chevrolet Caprice
- 1983 Chevrolet Caprice
- 1984 Chevrolet Caprice
- 1985 Chevrolet Caprice
- 1986 Chevrolet Caprice
- 1987 Chevrolet Caprice
- 1988 Chevrolet Caprice
Frequently Asked Questions
Who should choose the Twin Tube ARB?
Racers running high-horsepower G-body builds who need maximum rigidity and launch consistency.
What advantages does a chassis-mount ARB offer?
It provides the most rigid mounting point possible, dramatically reducing chassis twist for cleaner, straighter launches.
Why Buy from Beefcake Racing?
Beefcake Racing offers verified TRZ components, fast shipping, and expert drag-race support. For help choosing the right ARB for your Impala or Caprice, contact sales@beefcakeracing.com or call 1-855-827-7223.
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