Types of Traction Bars:
Different traction bar designs have different adjustment points. Common types include:
* Ladder Bars: Often adjustable at the lower mounting points on the axle.
* Cal-Tracs (or similar): These have more complex adjustments, often involving spring preload and arm length.
* Slapper Bars: Primarily control axle wrap; adjustments are usually focused on bar length and mounting positions.
General Adjustment Principles (applicable to most types):
* Axle Wrap: The primary goal of traction bars is to minimize axle wrap under acceleration. Too little control leads to wheel hop and loss of traction; too much can hinder suspension articulation and make the car handle poorly.
* Starting Point: Begin with the manufacturer's recommended settings as a baseline. This is crucial; improper initial settings can lead to damage.
* Adjusting for Wheel Hop: If you experience wheel hop, you likely need *more* traction bar control. This might involve:
* Shortening the bars (if adjustable): Brings the axle closer to the chassis, reducing rotation.
* Increasing preload (if applicable): Preloads the suspension, reducing axle movement.
* Tightening mounting bolts: Ensure all connections are secure.
* Adjusting for Stiff Ride: If the ride is too harsh or the suspension lacks articulation, you might need *less* traction bar control. This could mean:
* Lengthening the bars (if adjustable): Allows more axle movement.
* Reducing preload (if applicable): Lets the suspension work more freely.
* Fine-tuning: Make small adjustments (1/8" to 1/4" at a time) and test the car's behavior on a safe, controlled surface. Note the changes and iterate.
Specific Adjustments (Highly Dependent on the Type):
You need to consult the installation instructions for your *specific* traction bar kit. They'll detail adjustment points, recommended ranges, and safety precautions. Improper adjustment can damage your vehicle or cause dangerous handling.
Important Considerations:
* Safety: Always perform adjustments on a level surface, with the car securely supported. Never work under a car without proper jack stands.
* Professional Installation: If you're uncomfortable making adjustments yourself, take the car to a qualified mechanic or shop specializing in suspension work.
* Track Testing: Fine-tuning traction bar adjustments is best done on a drag strip or race track, where you can safely and repeatedly test acceleration and handling at high loads.
In short, without knowing the precise make and model of your Chevy, the type of traction bars installed, and your specific concerns, it's impossible to provide precise adjustment recommendations. Consult your traction bar's instruction manual and, if needed, seek professional assistance.
