1. Lowering Springs: This is the most common and often least expensive method. Replacement springs are available in various drop heights (e.g., 2", 3", 4", etc.).
* Pros: Relatively inexpensive, relatively easy installation (depending on your mechanical skills).
* Cons: Can negatively impact ride quality, especially with significant drops. May require additional modifications (like shorter shocks) for proper fit and function. May also affect handling.
2. Lowering Spindles (for the front): These replace the original spindle assembly and incorporate a shorter length, lowering the front end.
* Pros: Usually provides a better ride than just springs alone, and can improve handling.
* Cons: More expensive than springs, requires more mechanical skill for installation.
3. C-notch (for the rear): This involves cutting a section out of the rear frame rails and welding in a reinforcing plate to allow the axle to drop further. This is often combined with other methods.
* Pros: Allows for a significant drop in the rear without requiring excessive modification to the suspension.
* Cons: Requires welding and fabrication skills, more advanced than simply swapping springs.
4. Air Suspension: This is a more advanced and expensive option that allows for adjustable ride height. It involves replacing the entire suspension system with air bags and an air compressor system.
* Pros: Allows for adjustable ride height, superior ride quality compared to lowering springs, can be customized to the exact desired look.
* Cons: Very expensive, complex installation requiring significant mechanical and electrical knowledge.
5. Coil-overs: These replace the traditional spring and shock with a single unit combining both functions. Often adjustable, they provide a balance between ride and handling while allowing for a lowered stance.
* Pros: Improved handling and ride compared to just springs, adjustable height for fine tuning.
* Cons: More expensive than lowering springs, more complex installation.
Regardless of the method chosen:
* Consider the wheel and tire combination: Lowering your car might require different wheels and tires to prevent rubbing against the fenders and bodywork.
* Alignment: After lowering, a proper wheel alignment is crucial for safe and proper handling.
* Shocks and Struts: Shortening the suspension often requires shorter shocks or struts to prevent bottoming out and to maintain optimal suspension performance.
* Brakes: Lowering can sometimes affect brake lines; you may need to adjust or replace them.
Recommendation: For a beginner, lowering springs are the easiest option, but be prepared for a potentially harsher ride. For optimal results and a better ride quality, coil-overs offer a superior balance but are more involved. If you're not comfortable performing these modifications yourself, hiring a professional mechanic experienced with classic car suspension work is strongly recommended.
