SLP's 25% underdrive balancer for GTOs incorporate a number of high-quality features you won't find on any other aftermarket unit. Chief among them are a pair of extra tall belt retention walls that eliminate the belt slippage issues endemic to other GTO balancers. Other unique design strengths include 100% steel contruction (other brands use steel and aluminum), integral timing marks, and built-in puller-mounting threads. Includes a new balancer bolt and detailed installation instructions.

Features:

Extra-tall belt-retention walls = no more thrown belts

No aftermarket tensioner required

100% steel construction

Lighter than the stock balancer

Integral timing marks and puller-mounting threads

Keyed for high-RPM or supercharged applications

Does not cause false knock, retard or erratic power-curve dips

Includes new balancer bolt