Wilwood 330-13989 Balance Bar Rod Trunnion Replacement for Tru-Bar Pedal Assembly

The Wilwood 330-13989 is a direct-replacement balance bar rod designed specifically for Wilwood Tru-Bar Trunnion brake pedal assemblies. This precision hardware component restores proper function to the Tru-Bar system's unique brake bias adjustment mechanism, making it an essential rebuild and service part for race-prepped vehicles running Wilwood's dual master cylinder pedal setup.

Unlike traditional sliding mono-ball balance bar designs, the Tru-Bar system utilizes a fixed-position trunnion bearing within the pedal arm, with spherical rod-end bearings at the pushrod connections. The balance bar rod is the central threaded component that enables front-to-rear brake bias adjustment by repositioning the spherical pushrod pivot bearings relative to the fixed trunnion bearing — delivering highly precise, repeatable brake bias tuning.

Key Features:

• Direct OEM replacement balance bar rod for Wilwood Tru-Bar Trunnion pedal assemblies
• Manufactured from high-strength steel for durability under racing loads
• Plated finish for corrosion resistance and long service life
• Compatible with Wilwood Tru-Bar floor mount, forward swing, and reverse swing pedal configurations
• Supports brake bias adjustment up to four turns from center in either direction
• Retains compatibility with Wilwood standard remote adjuster cables

This replacement rod is the correct service part when the original balance bar rod shows signs of wear, thread damage, or corrosion. Proper installation requires centering the threaded rod with equal protrusion on both sides of the pedal arm before attaching master cylinder pushrods.