TRZ Motorsports Anti-Roll Bar - Under Housing Mount - Axle Tube Mounts Included - Single Tube (1978 - 1988 Impala / Caprice - G-Body) - 319-203-UHM
Single-Tube Under-Housing Anti-Roll Bar for 1978 - 1988 Impala & Caprice (G-Body)
The TRZ Motorsports 319-203-UHM Anti-Roll Bar is a heavy-duty under-housing solution engineered for 1978 - 1988 Impala and Caprice G-body drag applications. Built to eliminate chassis twist and improve traction, this ARB ensures both rear tires plant evenly for more consistent, straighter launches - even in high-power setups.
This system mounts directly to the axle tubes using the included weld-on brackets, keeping the bar low and offering excellent packaging clearance. The under-housing design provides strong control over suspension behavior without the need for a welded-in crossmember.
The single-tube bar uses durable 1.625" chrome-moly tubing paired with CNC-machined billet steel arms, making it suitable for drag cars producing up to roughly 1800 HP. TRZ pre-determines the center-to-center link spacing for correct G-body geometry and may reach out for verification if needed.
The kit includes billet end caps, mounting hardware, and unwelded HD links you can trim to the exact length for your application, ensuring proper installation and suspension geometry.
Performance Highlights
- Under-housing mounted design with included axle tube brackets
- Single-tube 1.625" chrome-moly anti-roll bar
- CNC-machined billet steel ARB arms
- Trim-to-length HD ARB links for custom fitment
- Pre-set link spacing for 1978 - 1988 G-body geometry
- Includes billet end caps, ARB links, and complete hardware
- Controls chassis twist for more consistent drag launches
- Suitable for builds up to ~1800 HP
Quick Specs
- Vehicle Application: 1978 - 1988 Chevrolet Impala / Caprice
- ARB Style: Single-tube standard ARB
- Main Tube: 1.625" chrome-moly
- Mount Type: Under-housing with weld-on axle mounts
- Arms: CNC-machined billet steel
- Includes: Axle brackets, ARB links, billet end caps, hardware
- Part Number: 319-203-UHM
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
Why choose an under-housing ARB?
It offers excellent packaging, keeps the bar low, and provides strong suspension control without requiring a chassis-mounted crossmember.
Is the single-tube ARB suitable for high-power G-body builds?
Yes. The 1.625" chrome-moly construction with billet arms supports drag setups up to roughly 1800 HP.
Why Buy from Beefcake Racing?
Beefcake Racing delivers verified TRZ components, expert G-body guidance, and fast shipping. For support choosing the right ARB setup for your Impala or Caprice, contact sales@beefcakeracing.com or call 1-855-827-7223.
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