# What is the function of differential and universal joint?

## What is the function of differential and universal joint?

The propeller shaft and the differential pinion shaft are not in one line, and hence the connection between them is made by a universal joint. Thus, it permits the torque transmission at an angle, and also while this angle is changing constantly while the vehicle is moving on the road.

### Where are universal joints used?

Today, universal joints are used universally in many machines in which there are long rotating shafts. Most notably, such joints are found between the transmission and rear drive shafts of rear-wheel drive cars (see Figure 3) and in old-fashioned tower clocks.

When should I replace my U-joints?

When there are signs that the joint isn’t 100%, always replace it. In other words, when in doubt, change it out. Even if the u-joint is a little loose, it’s still better to buy a replacement u-joint now than it is to let the u-joint worsen to the point of complete failure.

What are the two types of universal joints?

There are two types of U-joints, the cross and roller type and the ball and trunnion type. The cross and roller type is used the most; it allows the drive shaft to bend. The ball and trunnion type less frequently used; it allows the drive shaft to bend and also permits backward and forward motion of the drive shaft.

## Why is it called universal joint?

A U-joint (the “U” stands for “universal”), sometimes called a Cardan joint after the man who invented it, is a type of flexible coupling typically used on both ends of the drive shafts in rear-wheel and four-wheel drive vehicles.

### How much do u-joints cost?

The u-joint replacement cost is estimated between \$225 and \$300. Labor makes up about \$100 to \$125, while the parts should be between \$125 and \$200. However, these prices vary based on what make and model vehicle you drive.

What are the three types of CV joints?

6 Different Types of Constant-Velocity (CV) Joints

• #1 – Rzeppa CV Joint.
• #2 – Fixed and Plunge Joints.
• #3 – Plunge Joints (Tripod & Ball-Type)
• #4 – Tripod Joints.
• #5 – Tripod Joints (Fixed)
• #6 – Inboard Joints and Outboard Joints.

What are differential parts?

A differential is part of the front and/or rear axle assembly. The axle is the central shaft that the wheels on the vehicle rotate around. The photo below shows where it’s located on a vehicle with a four wheel drive automatic transmission. The differential allows wheels on the same axle to rotate at different speeds.

## How much is a differential repair?

Most differential repairs will cost between \$200 and \$400 to repair. Of course, this depends on the severity of the defect and what parts need to be replaced. For a rebuilt differential, you might need to spend between \$400 and \$1,000. On the other hand, replacing a differential costs \$1,000 to \$2,000 on average.

### What is a CV joint do?

Constant Velocity Joint Replacement Answer: Constant velocity, or CV, joints are used to connect your vehicle’s transmission to your wheels. CV joints are part of the driveshaft and are used primarily on front-wheel drive vehicles, but they are also used in rear- and four-wheel drive vehicles.

What causes U joints to fail?

This usually happens because of corrosion, excessive jolting or vibration, or because the bolts were not properly torqued into place. A worn or cracking transmission or differential housing can also cause this. Of course, u-joint failure isn’t limited to these three causes.

How much does it cost to replace u-joint?

## What are the different types of differential shafts?

Pinion Shaft or Cross Pin These are two pinion gears and their supporting shaft is called the pinion shaft. It is fitted in the differential case. 4. Axle Shafts or Half Shafts The pinion shaft meshes with two differential side gears connected to the inner ends of the axle shafts. 5. Ring Gear or Crown Wheel

### How does a rear wheel drive car have a differential?

In rear-wheel drive automobiles the central drive shaft (or prop shaft) engages the differential through a hypoid gear (ring and pinion). The ring gear is mounted on the carrier of the planetary chain that forms the differential.

Can West Coast differentials help with axle problems?

At West Coast Differentials, we have been diagnosing, repairing and upgrading axles and differentials since 1982. We’re confident we can help with your diagnosis, and we can also provide you with the parts needed to fix it! Give our tech and sales experts a call at (800) 510-0950 and we’ll be happy to help.

What is a differential?

A differential is defined as a gear train, it consists of three gears that have the feature that the rotational speed of one shaft is the average speed of the others or a fixed multiple of that average. The car differential is a system, that transfers engine torque to the wheels.