TRZ Motorsports Anti-Roll Bar - Chassis Mount - 1 5/8" Crossmember Included - Twin Tube (1970 - 1981 Camaro / Firebird / 1975 - 1979 Nova) - 318-203-TT
Twin-Tube Chassis-Mounted Anti-Roll Bar for 1970 - 1981 Camaro/Firebird & 1975 - 1979 Nova
The TRZ Motorsports 318-203-TT Anti-Roll Bar is the heavy-duty Twin Tube "Girth Brooks" option for high-horsepower F-Body and X-Body drag cars. Designed for serious racers looking for maximum torsional rigidity, this system uses a 1.625" inner chrome-moly tube supported by a 2.25" outer chrome-moly tube to keep the chassis square under massive load.
This chassis-mounted kit includes a 1.625" chrome-moly crossmember that welds between the frame rails or roll cage. The ARB mounts directly to the crossmember for the most rigid configuration possible - ideal for aggressive launches, radial cars, and extreme horsepower builds.
TRZ provides pre-determined link center distances for proper geometry on 1970 - 1981 Camaro / Firebird and 1975 - 1979 Nova platforms. TRZ may contact you if verification is needed. Every kit includes heavy-duty ARB links, billet end caps, CNC'd billet steel arms, and full mounting hardware.
Once installed, this Twin Tube ARB eliminates chassis twist and ensures both rear tires plant evenly for harder, straighter, and more consistent launches at the track.
Performance Highlights
- Twin Tube "Girth Brooks" design for extreme rigidity
- 1.625" inner + 2.25" outer chrome-moly tubes
- Chassis-mounted with included 1.625" crossmember
- CNC-machined billet steel arms
- Vehicle-specific link spacing for accurate geometry
- Includes billet end caps, ARB links, and full hardware
- Eliminates chassis twist under hard launches
- Ideal for high-horsepower drag applications
Quick Specs
- Vehicle Application: 1970 - 1981 Camaro / 1970 - 1981 Firebird / 1975 - 1979 Nova
- 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: 318-203-TT
Fitment
- 1970 Chevrolet Camaro
- 1971 Chevrolet Camaro
- 1972 Chevrolet Camaro
- 1973 Chevrolet Camaro
- 1974 Chevrolet Camaro
- 1975 Chevrolet Camaro
- 1976 Chevrolet Camaro
- 1977 Chevrolet Camaro
- 1978 Chevrolet Camaro
- 1979 Chevrolet Camaro
- 1980 Chevrolet Camaro
- 1981 Chevrolet Camaro
- 1970 Pontiac Firebird
- 1971 Pontiac Firebird
- 1972 Pontiac Firebird
- 1973 Pontiac Firebird
- 1974 Pontiac Firebird
- 1975 Pontiac Firebird
- 1976 Pontiac Firebird
- 1977 Pontiac Firebird
- 1978 Pontiac Firebird
- 1979 Pontiac Firebird
- 1980 Pontiac Firebird
- 1981 Pontiac Firebird
- 1975 Chevrolet Nova
- 1976 Chevrolet Nova
- 1977 Chevrolet Nova
- 1978 Chevrolet Nova
- 1979 Chevrolet Nova
Frequently Asked Questions
Is the Twin Tube ARB worth it over the single-tube version?
Yes - especially on extreme-horsepower or radial cars where chassis rigidity is critical. The Twin Tube design delivers the highest torsional strength TRZ offers.
Why use a chassis-mounted ARB?
Chassis mounting ties the ARB into the frame or cage for maximum stiffness, improving traction, reducing twist, and increasing launch consistency.
Why Buy from Beefcake Racing?
Beefcake Racing provides expert suspension support, verified TRZ components, and fast shipping. For help choosing the right ARB for your Camaro, Firebird, or Nova, contact sales@beefcakeracing.com or call 1-855-827-7223.
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