What do u-joint numbers mean?

Standard u-joints sizes are classified by series, with each series having specific cap diameter and overall joint width. Typically speaking, a higher series number translates to a stronger joint.

How do I know if my drive shaft u-joints are bad?

Symptoms of a Bad or Failing Universal Joint (U-Joint)

1. Squeaking noise when starting to move (forward or reverse)
2. “Clunk” with a ringing sound when shifting from Drive to Reverse.
3. Vibration felt throughout the vehicle while moving forward at speed.
4. Transmission fluid leaks from the rear of the transmission.

Will bad U joints squeak?

Common signs of a faulty u-joint include a squeaking noise, clunking sound when shifting, vibrations in the car, and transmission fluid leaking.

What is the difference between a 1310 and 1330 U-joint?

1330 joints use a larger body than the 1310 joint but the same-size trunnions and caps. They are often found in 3⁄4-ton trucks and allow more angularity than 1310 joints but are only marginally stronger. 1350 joints are found in 1-ton trucks and use the wider body of the 1330 joint but with larger trunnions and caps.

How do I know my U-joint size?

The width of the joint is measured across the ends of the caps as shown for outside locks. Inner lock type joints should be measured from the outer side of the lock groove.

Are u-joints easy to replace?

Over time, especially with improper maintenance, U-joints can fail and require replacement. There are two accepted ways to replace U-joints: with a hammer and with a specialized tool.

How often should you change u-joints?

every 5,000 miles
In most cases, you have to grease your u-joints every 5,000 miles or so. When you fail to service your u-joints on a regular basis, they will fail. You don’t have to worry about this problem with maintenance free u-joints. Misalignment: This happens when you change the vehicle’s ride height.