Why Your Leer Topper Struts Are Failing
The lift struts on your Leer truck topper are essential gas springs designed to smoothly open, hold, and gently close your cap. Over time, the internal seals can degrade, leading to gas leakage and a loss of pressure. This loss of pressure is the primary reason your topper struts will eventually fail. It's not a matter of if, but when, as environmental factors like extreme temperatures and constant use accelerate wear on these components.
Understanding the core principle is fundamental: these aren't just simple springs; they are precisely engineered pneumatic cylinders. When they lose their charge, they can no longer counteract the weight of the topper, especially its rear door or side windows. Our analysis indicates that typical lifespans can range from 3 to 7 years, heavily dependent on the quality of the original components and the harshness of the operating environment.
- Degrading seals cause gas leakage and loss of pressure.
- Struts are engineered pneumatic cylinders, not basic springs.
- Lifespans typically range from 3-7 years, varying by conditions.
- Failure leads to inability to hold the topper open.
Common Failure Indicators
Several tell-tale signs point directly to the need for Leer topper replacement struts. The most obvious is if your topper door or window simply won't stay open on its own, slowly drooping down even when you try to prop it. You might also notice a significant increase in the effort required to lift the topper open, or that it slams shut more forcefully than it used to. Some users report hearing faint hissing sounds, though this is less common.
It is imperative to acknowledge that continued use of weakened struts can put undue stress on the topper's mounting points and frame. Such precision is paramount for the longevity of your entire topper assembly. Don't wait for a complete failure to address the issue.
Identifying the Right Replacement Struts
How do you pinpoint the correct Leer topper replacement struts for your specific model? The key lies in gathering precise information about your existing struts and topper. Most manufacturers, including Leer, use struts with specific force ratings (measured in pounds or Newtons) and physical dimensions (length when extended and compressed). Incorrect force can lead to a topper that's too hard to close or won't stay open fully.
Always measure your existing struts from center-of-ball-mount to center-of-ball-mount in both their fully extended and fully compressed states before ordering replacements.
Essential Specifications to Match
When searching for replacements, you'll need to identify the strut's length and its gas pressure. The length is critical for proper operation; too short and it won't open fully, too long and it could bind or damage the frame. Similarly, the force rating must match or be very close to the original. While some aftermarket options might offer 'universal strut clamps' or 'strut angle brackets,' these are typically for custom fabrication and not direct replacements for a specific Leer topper application.
Matching the exact specifications is the single most critical step to ensuring your topper functions correctly and safely after replacement.
For instance, if your original struts are 20 inches extended and 18 inches compressed, with a force of 100 lbs each, you must find replacements that meet these criteria. While you might find information on 'lesjofors gas struts rear specifications' for other vehicles, these are generally not interchangeable with truck topper struts due to differing mounting and force requirements. Always prioritize parts designed for truck caps and toppers, or those explicitly listed as compatible with your Leer model.
DIY Replacement: Steps and Best Practices
Replacing Leer topper struts yourself is a feasible DIY project, but it requires careful execution. The primary safety concern is the stored energy within the gas struts. If you attempt to remove a strut without properly supporting the topper door or window, it can fall unexpectedly and cause injury or damage. Always ensure the topper is securely propped open with sturdy supports before you begin.
Step-by-Step Replacement Process
Begin by gathering your new struts and the necessary tools, typically a flathead screwdriver or a small pry bar and possibly a socket set for certain mounting hardware. You'll also need safety glasses and gloves.
- Prop the topper door or window open securely, ensuring it cannot move.
- Locate the mounting points of the old strut. These usually involve a ball stud or a clevis mount.
- Carefully pry off the retaining clip or remove the bolt holding the strut end to the mount.
- Gently detach the old strut from both mounting points, working from top to bottom or vice-versa.
- Align the new strut with the corresponding mounting points.
- Secure the new strut using the clips or bolts, ensuring they are firmly in place.
- Repeat for any other failing struts.
Test the operation of the new struts by carefully opening and closing the topper door or window to ensure smooth movement and proper holding capability before fully committing.
It's often recommended to replace struts in pairs to ensure even lifting force. If one strut has failed, the other is likely under increased strain and nearing its own end-of-life. This approach ensures consistent performance and prevents premature wear on the remaining original strut. While specific applications like a 'mini 14 accu strut' or 'full strut turkey mount' are specialized, the fundamental principles of safe strut replacement remain consistent.