Parts for your 2017 Nissan Pathfinder-Universal joints

Universal Joints on the 2017 Nissan Pathfinder: What You Need to Know

The 2017 Nissan Pathfinder is a popular SUV known for its versatility, solid performance, and comfortable ride. When it comes to drivetrain components, some folks might wonder if universal joints, often called U-joints, are part of this vehicle's setup. The short answer is that the 2017 Nissan Pathfinder does not use traditional universal joints in its drivetrain. But to understand why, it helps to first take a quick look at what U-joints do and why some vehicles use them while others don't.

Universal joints are mechanical components designed to connect rotating shafts that are not in a straight line. They allow power to be transmitted smoothly even when the shafts are at an angle to each other. You'll typically find U-joints on the driveshafts of rear-wheel-drive or four-wheel-drive vehicles with solid rear axles. They compensate for the up and down motion of the suspension, letting the driveshaft flex while still turning the wheels.

Now, the 2017 Nissan Pathfinder, especially in its later generations, uses a more modern drivetrain architecture. It has an independent rear suspension rather than a traditional solid axle setup. Instead of using universal joints, the Pathfinder relies on constant velocity (CV) joints in its drive axles. CV joints are similar in purpose to U-joints but are designed to handle larger angles more smoothly and with less vibration. The CV joints work well in conjunction with independent suspension design, delivering power quietly and efficiently to each rear wheel.

Because of this independent rear suspension and CV joint design, traditional universal joints are not relevant or used in the 2017 Pathfinder. Instead, the vehicle's drivetrain benefits from the smoother operation and better handling characteristics that CV joints provide. This means less routine servicing related to universal joints and more focus on CV joint and axle maintenance if required.

For those who own or service a 2017 Nissan Pathfinder, knowing this distinction is important. U-joints, if fitted on older SUVs or trucks, often require regular greasing and periodic inspection to prevent wear or failure. But for the Pathfinder's rear drive axles, maintenance typically centres on checking for torn CV boot seals, as these protect the CV joints from dirt and moisture. If the boot gets damaged, the CV joint can wear out quicker, leading to clicking noises when turning or potential drivetrain issues.

Replacing or maintaining universal joints, in vehicles that do use them, involves some key steps. Firstly, it's vital to routinely inspect the joints for any signs of play or rust. Any looseness could indicate a worn U-joint, which might result in vibrations or even a catastrophic failure if left untreated. For vehicles equipped with greaseable U-joints, applying fresh grease at regular intervals extends the joint's lifespan considerably.

In the case of the 2017 Nissan Pathfinder, owners should instead keep an eye on the CV joints and the axle boots. Checking these during servicing may seem less obvious if you're used to thinking about universal joints, but it's an essential part of keeping the drivetrain in good shape. If the CV boot is damaged or leaking grease, it's crucial to replace it promptly to avoid the need for more expensive joint repairs.

While the Pathfinder's drivetrain is a bit more modern and engineered for a smooth, quiet ride, some of the classic principles of joint maintenance still apply. Clean, well-lubricated, and protected joints - whether universal or constant velocity - are key to a reliable driveshaft system, whether you're hitting the open highway or tackling rugged off-road tracks.

Overall, the absence of universal joints in the 2017 Nissan Pathfinder is due to its independent rear suspension and the use of CV joints, which better suit the vehicle's design and performance goals. Maintaining these components in good working order helps ensure the vehicle drives smoothly and safely for many years. If any drivetrain noises or vibrations appear, it's always a good idea to have the joints and axles checked by a qualified mechanic, rather than assuming the problem lies with universal joints that the vehicle doesn't have.