Understanding the Springs: You typically have two types of springs:
* The large, main spring: This is usually a "U" or "S" shaped spring that sits over the top of the brake shoes and helps to keep the shoes in contact with the drum.
* Smaller return springs: These are often smaller coil springs that help to return the brake shoes to their released position after braking. Their location varies.
General Installation Steps:
1. Cleanliness is crucial: Thoroughly clean the brake drum, shoes, and all spring contact points. Any dirt or debris can hinder proper spring placement and function.
2. Identify Spring Locations: Carefully examine the old springs to understand how they were positioned. Take pictures if necessary before removing them – this is *extremely* helpful.
3. Main Spring Installation: The large spring typically sits in a channel or groove on the backing plate. You need to carefully align the spring's ends over the appropriate retaining points on the brake shoes and backing plate. Often, you'll need to compress the spring slightly to fit it into position. This can be done by hand, using pliers (carefully!), or a specialized spring tool.
4. Return Springs: The smaller springs are generally installed between the brake shoes or between the shoes and the backing plate. Again, observe how they were installed originally.
5. Verification: Once the springs are installed, carefully check the movement of the brake shoes. They should move freely when the brake pedal is not pressed and return to their resting position. They should also firmly contact the brake drum when the brake pedal is depressed.
Important Considerations:
* Use the right tools: Pliers, brake spring tools, and a small pry bar can be helpful.
* Take your time: Rushing this can lead to bent springs or incorrect installation, potentially resulting in brake failure.
* Safety First: Always wear safety glasses and gloves when working on brakes.
* Consult a Repair Manual: A service manual specific to your 1994 Jeep Wrangler YJ will have detailed diagrams and instructions. This is highly recommended. Haynes and Chilton manuals are readily available.
* If you are unsure: If you're uncomfortable working on brakes, take your Jeep to a qualified mechanic. Brakes are a critical safety component, and improper installation can have serious consequences.
Remember: Pictures before disassembly are invaluable. If you're struggling, searching YouTube for "1994 Jeep Wrangler YJ rear brake spring installation" might show you visual demonstrations that clarify the process. Good luck!
