Here are the common methods, ranging from easiest to most involved:
1. Adjusting the Rear Shocks/Struts (Least Involved, Smallest Adjustment):
* How it works: If your rear is slightly higher due to worn shocks or slightly different shock lengths compared to the front, replacing them with new ones of the correct size *might* level things out. This is the least invasive method, but it only addresses small height differences.
* Pros: Relatively inexpensive and easy.
* Cons: Won't work if the height difference is significant. Won't provide a true "lowering" if it's already within factory specs.
2. Installing Lowering Blocks/Add-A-Leaf Springs (Moderate Adjustment):
* How it works: Lowering blocks are placed between the axle and the leaf springs, effectively shortening the spring's travel and lowering the rear. Add-a-leaf kits add a supplementary leaf to the existing spring pack, stiffening the suspension while lowering it.
* Pros: Relatively inexpensive and moderately easy to install. Provides a noticeable lowering.
* Cons: Can negatively impact ride quality (rougher ride), potentially affect handling, and might not be suitable for heavy loads. Add-a-leaf can increase stiffness significantly.
3. Installing Lowering Leaf Springs (Significant Adjustment):
* How it works: Replacing the entire rear leaf spring assembly with shorter, lowering springs. This is the most effective method for significant lowering.
* Pros: Provides a substantial drop while maintaining (relatively) good ride quality compared to blocks.
* Cons: More expensive and more challenging to install than blocks or add-a-leaf kits. Requires specialized tools. May require other suspension modifications to avoid issues with axle articulation.
4. C-Notch (Significant Adjustment, Advanced):
* How it works: A significant lowering, especially if you've already lowered the front, may require a C-notch modification. This involves cutting into the rear axle housing to allow for greater axle articulation when the suspension is compressed. It's *highly* recommended you have this done by a professional.
* Pros: Allows for significant lowering without significant issues with axle bumpstop contact.
* Cons: Expensive, requires welding and fabrication skills (or a professional), potentially affects structural integrity if done improperly.
Before You Begin:
* Measure the height difference: Accurately measure the distance from the ground to the wheel well at both the front and rear to determine the exact amount of lowering needed.
* Research parts: Determine the appropriate lowering kit for your desired drop. Consider the brand reputation and customer reviews.
* Gather tools: Ensure you have the necessary tools for the chosen method. This could range from basic wrenches and sockets to specialized spring compressors and welding equipment.
* Consult a professional: If you're not comfortable working on your truck, consider hiring a qualified mechanic to perform the work. Incorrect installation can lead to handling problems, premature wear and tear, or even safety hazards.
Remember to check your local laws and regulations regarding vehicle modifications before proceeding. Improper lowering can affect your vehicle's safety and legal compliance.
