TRZ Motorsports Anti-Roll Bar - 6" Arms - Under Housing Mount - Builders Kit - Unwelded - 203-UW6-UHM
Standard HD Under-Housing Anti-Roll Bar Builder's Kit with 6" Arms
The TRZ Motorsports 203-UW6-UHM Anti-Roll Bar Kit is a heavy-duty, unwelded standard HD ARB system designed specifically for under-housing mounting applications. Built for drag racers who require maximum stability and consistent weight transfer, this kit uses TRZ's proven 1-5/8" chrome-moly main tube paired with long 6" billet arms for increased leverage and chassis control under hard acceleration.
This unwelded setup includes the complete HD ARB link kit with (2) 1" chrome-moly tubes, LH/RH tube inserts, matching rod ends, (4) housing tabs, and Grade 8 hardware. The 1-5/8" chrome-moly main tube provides excellent torsional strength for high-performance drag racing builds while maintaining compatibility with under-housing installation.
Racers can build up to 25" center-to-center ARB width and shorten the bar as needed to match their specific chassis or housing configuration. This model includes 6" CNC-machined billet one-piece arms, measured from the anti-roll bar tube centerline to the rod-end centerline, offering increased suspension leverage and smooth weight transfer.
The kit includes under-housing mounting brackets for a low, stable installation point directly on the rear axle housing. Unlike bulkier twin-tube systems, the standard HD design is compatible with both crossmember and under-housing setups. (Twin Tube / Girth Brooks kits cannot be used under the housing due to clearance issues.)
Each system features billet aluminum end caps with bronze bushings and grease fittings for smooth operation and long-term reliability. (Bronze ID may require light sanding after welding the arms.) Once properly installed, this ARB eliminates body roll and dramatically improves launch consistency and traction.
Performance Highlights
- Under-housing mounted standard HD anti-roll bar
- Strong 1-5/8" chrome-moly anti-roll bar tube
- Complete unwelded builder's kit for fabrication flexibility
- Includes 1" chrome-moly link tubes, rod ends, and hardware
- 6" billet CNC arms for increased leverage and chassis control
- Supports up to 25" center-to-center ARB width (shortenable)
- Compatible with under-housing and crossmember mounting
- Billet aluminum end caps with bronze bushings + grease fittings
- Eliminates body roll for stable, consistent drag strip launches
Quick Specs
- Kit Type: Standard HD Anti-Roll Bar (Under-Housing Builder's Kit)
- Main Tube: 1-5/8" chrome-moly
- Arms: 6" billet CNC-machined one-piece arms
- Max Width: 25" center-to-center (adjustable/shortenable)
- Mount Style: Under-housing installation (housing tabs included)
- Link Tubes: (2) 1" chrome-moly tubes with LH/RH rod ends
- End Caps: Billet aluminum w/ bronze bushings
- Part Number: 203-UW6-UHM
Frequently Asked Questions
Why choose an under-housing anti-roll bar?
An under-housing mount provides a low and stable leverage point, helping the rear suspension stay square and controlled during aggressive drag launches.
Is this ARB compatible with twin-tube or Girth Brooks designs?
No. Twin-tube systems are too large to clear the housing, so only standard HD units like the 203-UW6-UHM can be installed under the housing.
Why Buy from Beefcake Racing?
Beefcake Racing supplies verified TRZ Motorsports suspension components, fast shipping, and expert drag racing support. For questions or setup assistance, contact sales@beefcakeracing.com or call 1-855-827-7223.
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