A roll over valve (also called a rollover valve or ROV) is a simple but critical safety device in a vehicle’s fuel system. Its sole job is to prevent fuel from leaking out of the tank vent lines if the vehicle flips onto its roof or side. Why It Exists In a normal fuel system,…
If you’ve just connected your fuel line to the carburetor and now the engine is flooding, idling rough, or blowing black smoke, the culprit might not be the carburetor itself — it could be the fuel pressure regulator (FPR). A failed FPR can send too much fuel pressure to the carburetor, overwhelming the needle and…
If you’re staring at your carburetor wondering where to connect the fuel line, you’re not alone. Whether you’re rebuilding a classic Holley, tuning a Weber, or simply replacing a cracked rubber hose on your daily driver, connecting the fuel line to the carburetor correctly is one of the most critical steps in any fuel system…
What Does the Rear Trailing Arm Bushing Do? The rear trailing arm bushing is a rubber-or-polyurethane-isolated pivot point that connects the rear trailing arm to the vehicle’s subframe or chassis. On Honda Civic platforms—particularly the EG (1992–1995), EK (1996–2000), and EM/EP (2001–2005) generations—this bushing allows the trailing arm to pivot vertically as the suspension cycles,…
What Is a Drop Spindle? A drop spindle—also called a dropped steering knuckle or lowered spindle—is an aftermarket suspension component designed to lower your vehicle’s front ride height without altering spring rates, shock travel, or factory suspension geometry. Here’s how it works: the spindle pin (the point where your wheel hub and bearings mount) is…
What Are Coil Spring Spacers? Coil spring spacers are aftermarket lift components designed to raise your vehicle’s ride height by inserting a spacer between the coil spring and the spring perch. Unlike full suspension lift kits that replace your entire coil spring, spacers work with your factory springs to provide a cost-effective leveling or mild…
Lower control arm bushings are the unsung heroes of your vehicle’s suspension system. These small rubber or polyurethane components absorb road shocks, dampen vibrations, and allow the controlled movement that makes driving comfortable. When they wear out, everything from ride quality to handling precision suffers. Replacing lower control arm bushings is one of the most…
Bushing sleeves are the metal inner cylinders around which rubber or polyurethane bushings are mounted. These sleeves press into control arms, suspension components, and various mechanical assemblies, providing a hard inner surface for pivot points and mounting locations. Over time, bushings deteriorate and need replacement—but before you can install new bushings, you must first remove…
Lowering blocks are one of the most popular and cost-effective methods for dropping the rear end of a vehicle equipped with a leaf spring suspension. Whether you’re building a street machine, creating a mean-looking truck, or simply wanting that aggressive stance that turns heads, lowering blocks offer a straightforward solution. The installation process, while straightforward,…
Every vehicle on the road relies on a sophisticated system of components to connect the wheels to the chassis while allowing controlled movement. The lower control arm is one of the most critical components in this system, yet many drivers have no idea what it does or why it matters. Understanding what a lower control…