TRZ Motorsports Anti-Roll Bar - Under Housing Mount - Axle Tube Mounts Included - Twin Tube (1970 - 1981 Camaro / Firebird / 1975 - 1979 Nova) - 318-203-UHM-TT
Twin-Tube Under-Housing Anti-Roll Bar for 1970 - 1981 Camaro/Firebird & 1975 - 1979 Nova
The TRZ Motorsports 318-203-UHM-TT Anti-Roll Bar is the extreme-duty Twin Tube "Girth Brooks" version for second-gen F-Body and 1975 - 1979 X-Body racers. Engineered to keep the chassis perfectly square under hard launches, this ARB uses a 1.625" inner chrome-moly tube wrapped inside a 2.25" outer chrome-moly tube for unmatched torsional rigidity.
Designed for under-housing installation, the system includes weld-on axle tube brackets and unwelded heavy-duty ARB links that can be trimmed to the correct length for your Camaro, Firebird, or Nova. TRZ uses pre-determined link center-to-center distances matched to your platform and may contact you for verification if needed.
CNC-machined billet steel arms, billet end caps, and full mounting hardware ensure durability and smooth operation under extreme loads. This setup is ideal for high-horsepower drag cars, radial setups, and any build where keeping the chassis straight is essential for consistent traction.
Once installed, the Twin Tube under-housing ARB delivers exceptional stability, equal rear tire loading, and improved 60-foot consistency.
Performance Highlights
- Twin Tube "Girth Brooks" construction for extreme rigidity
- 1.625" inner + 2.25" outer chrome-moly tubes
- Under-housing mounted design with axle tube brackets included
- Unwelded HD ARB links for custom-length trimming
- Pre-set link spacing tuned for Camaro, Firebird & Nova geometry
- CNC-machined billet steel arms
- Includes billet end caps, hardware, and ARB links
- Eliminates chassis twist for straighter, more consistent launches
Quick Specs
- Vehicle Applications: 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: Under-housing (axle tube mounts included)
- Arms: CNC-machined billet steel
- Includes: Axle mounts, ARB links, billet end caps, hardware
- Part Number: 318-203-UHM-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
Who should choose the Twin Tube over the single-tube ARB?
The Twin Tube is ideal for extreme-horsepower F-Body and X-Body builds or radial applications where maximum torsional strength is required.
What are the benefits of an under-housing mount?
It offers clean packaging, keeps the ARB low, and avoids the need for a welded-in crossmember while still delivering exceptional performance.
Why Buy from Beefcake Racing?
Beefcake Racing supplies verified TRZ suspension components, expert drag racing support, and fast shipping. For help selecting the right ARB setup for your Camaro, Firebird, or Nova, contact sales@beefcakeracing.com or call 1-855-827-7223.
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