Flexible Coupling

Steering gear and column shaft must be in alignment to avoid binding at coupling or metal-to-metal contact between shaft flanges. An improperly aligned column or steering gear may cause increased turning effort, directional pointing, lumpiness or popping noise.

A hissing noise common to rotary valve power gears can be carried through steering shaft and inside vehicle if metal-to-metal contact exists at coupling. Coupling flange components should have at least 1/16" to 1/8" (1.6-3.2 mm) operating clearance at all times.