Quality Pilot Bushings – Say Goodbye To Transmission Failure

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What Is a Pilot Bushing?

A pilot bushing also referred to as a transmission pilot bushing, is one of the most important parts of an automobile clutch.

The pilot bushing is seldom thought of as a part of the clutch system but it is one of the most vital parts of the system. The pilot bushing is only functional when the clutch is disengaged but it is a factor in input gear alignment at ALL times.

Most people have no idea what an important part the pilot bushing plays in the life of the transmission and clutch. The job of the pilot bushing is to support the end of the transmission input (main drive) gear in the crankshaft and it only acts as a bushing when the flexplate is depressed. This pilot bushing should be a light drive fit into the crank bore.

Types Of Pilot Bushings/Bearings

Types of Pilot Bushings:

  • “Good” pilot bushings are made of sintered bronze. Predominately, these bushings are bronze alloys that are impregnated with an oil to arbor the pilot tip of a transmission input shaft.
  • Bronze bushings are the most common type of pilot bushing used in cars. They are durable, provide good wear resistance, and can handle high temperatures.
  • Nylon bushings are a cheaper alternative to bronze bushings. They are lightweight, reduce noise and vibration, and are resistant to chemicals and moisture.
  • Steel bushings are used in high-performance applications. They are stronger and more durable than bronze or nylon bushings and can handle extreme loads and high temperatures.
shaft bearing
sintered bronze bearing

How Does Clutch Pilot Bushing Work?

The pilot bushing is positioned at the end of the engine’s crankshaft and helps support the opposite end of the transmission’s input shaft which is an important part of how the clutch works. Pilot bushing allows the input shaft to stop spinning so the car’s gears can be shifted. This pilot bushing bearing may not be included in some front-wheel-drive cars because the bell housing is shorter and the input shaft can be supported within the transmission and does not need the additional support from the pilot bearing.

Proper selection, installation, and maintenance of pilot bushings are essential to ensuring optimal performance and reliability of automotive systems.

How to Remove a Stuck Pilot Bushing or Pilot Bearing

1: Use A Pilot Bearing Removal Tool

The puller tool inserts into the ID of the pilot bushing or bearing and expands as the tool is tightened down, theoretically obtaining a good hold onto the bushing/bearing from its center. Then, the shaft is tightened, forcing the bushing/bearing out of the crankshaft bore.

2: Hydraulic Force

More often than not, this is our immediate go-to way of removing either a stuck pilot bushing or stuck pilot bearing. First, grab a wooden dowel, steel rod, or what we normally use, a pilot bushing/bearing alignment tool that tightly fits inside the ID of the pilot bushing/bearing. Then, fill the cavity behind the bushing/bearing with grease.
All you need to do is insert the dowel, rod, or tool into the bore of the pilot bushing/bearing and give it a firm rap with a hammer. The hydraulic action will force the bearing out easier than you’d expect. In extreme cases where the bushing/bearing shell is deep and the press-fit tolerance is on the right side, you may need to refill the cavity with grease once or twice before it comes out.

3: Cut And Chisel

We consider this a method of last resort when all else has failed. The reason is the potential for damage to the engine crankshaft. This method works equally well with either a bronze pilot bushing or a steel pilot bearing, but you do need to be extra careful with the bearing to ensure you don’t cut too deeply and damage the crankshaft.
Using a rotary cutting disc is the easiest way. Carefully cut a deep divot nearly the entire way through. It’s not necessary to cut all the way through, though, as this increases the potential for damage to the crankshaft.
Using a sharp, flat chisel, firmly strike the bushing or bearing shell. If you’ve cut deeply enough, the busing or bearing shell will crack, relieving the press-fit in the crankshaft bore.
Then it’s just a matter of removing the pilot bushing or bearing with your hands and reinstalling a new one.

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The Importance Of Pilot Bushings In The Automotive Industry

Pilot bushings are an essential component in the automotive industry that plays a critical role in the performance and safety of vehicles. These small cylindrical components help to support rotating shafts, reducing friction and wear between the shaft and the stationary components, and keeping the shaft centered and aligned.

pilot bushings are important for manual transmission systems, clutch systems, crankshaft and dampen vibrations, drive shaft assemblies, motor mounts, vehicles, hydraulic systems, and electrical systems.

Installation And Maintenance Of Pilot Bushings

Proper installation and maintenance of pilot bushings is essential to ensure their optimal performance and longevity in automotive and mechanical systems.


after cleaning the bore, Use a pilot bushing installer tool to press the bushing into place, and then Lubricate the bushing, finally, Check the fit.


Regularly inspect the pilot bushing for signs of wear, Apply a small amount of high-quality lubricant to the bushing periodically, Check the alignment of the shaft and the bore periodically, and, Replace as needed

low friction bearings, pilot bushings, flanged brass bushing
bronze lifter bushings, Removing a Pilot Bushing

Removing a Pilot Bushing

When dealing with worn-out pilot bushings or pilot bearings, they must be extracted from their position. Typically, this task is entrusted to a skilled mechanic, as not only does the faulty bushing need removal, but it also necessitates replacement with a new one. There are two primary techniques for removing a firmly lodged pilot bushing or pilot bearing.

The first and preferred method involves the use of a specialized tool known as a pilot bushing removal tool. This tool is designed specifically for the purpose of extracting pilot bushings. It is inserted into the bearing and expanded to securely grasp it before twisting it out of its location. This method is generally regarded as the most effective approach for pilot bushing removal, though it is not the sole option available.

An alternative, tried-and-true method is to harness hydraulic force to dislodge the bushing. This involves inserting a rod into the center of the pilot bushing, surrounding it with grease, and striking it with a hammer. The internal hydraulic pressure gradually pushes the bearing out of its place. Both of these methods are highly effective, and in most cases, at least one of them will successfully accomplish the task.

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Automotive Pilot Bushings Bearing 

Pilot Bushings and Transmission Systems

In manual transmission systems, pilot bushings are used to support the input shaft that connects the clutch to the transmission. Without a properly functioning pilot bushing, the input shaft can become misaligned, causing excessive wear on the clutch and transmission components, and even leading to transmission failure. In extreme cases, a worn-out pilot bushing can cause the input shaft to seize up, making it impossible to shift gears or drive the vehicle.

Pilot Bushings and Clutch Systems

Pilot bearing bushings also play a crucial role in the operation of the clutch system. They help to keep the clutch disc properly aligned with the flywheel, ensuring smooth engagement and disengagement of the clutch. If the pilot bushing is worn or damaged, the clutch disc can become misaligned, causing juddering, vibrations, and even clutch slippage.

Bushings in Flywheel Assemblies

In addition, pilot bushings are used in the flywheel assembly to support the crankshaft and dampen vibrations. A worn-out or damaged pilot bushing can cause excessive vibration, leading to premature wear on engine bearings and other components.

Pilot Bushings in Drive Shaft Assemblies

Pilot bearing bushings are also used in drive shaft assemblies to support the rotating shaft and help to reduce vibration and noise. A worn-out pilot bushing in the drive shaft can cause excessive noise and vibration, leading to premature wear on the drive shaft, universal joints, and other components.

The Pilot Bushings in Motor Mounts

In motor mounts, pilot bushings are used to support the engine and reduce vibration. Without a properly functioning pilot bushing, excessive vibration can cause damage to the engine and other components.

Pilot Bushings in Steering Assemblies

The bushings also play a role in the steering system of a vehicle. They help to support the steering shaft, reducing friction and wear, and ensuring smooth and precise steering. A worn-out pilot bushing in the steering system can cause excessive play in the steering, making it difficult to control the vehicle.

Bushings in Hydraulic Systems

In motor mounts, pilot bushings are used to support the engine and reduce vibration. Without a properly functioning pilot bushing, excessive vibration can cause damage to the engine and other components.

Bushings in Electrical Systems

In electrical systems, pilot bushings are used to support the rotating shaft and help to reduce friction and wear. A worn-out pilot bushing in the electrical system can cause excessive wear on the shaft, leading to premature failure of the system.

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