FAQ

What type of grease should I use to lubricate my universal joints equipped with grease fittings?

A good quality lithium complex soap-based EP  (Extreme Pressure) grease with an NGLI grade of 1 to 2 is recommended.

When does a driveshaft need to be balanced?

Generally, all driveshafts operating over 1000 RPM require balancing. Typically vehicle prop shafts rotate above the 1000-RPM range and require balancing. PTO (Power Take-Off) shafts powering agricultural implements usually run at 540 or 1000 RPM and do not require balancing. There are however many other types of PTO driveshafts that do require balancing such as drive shafts powering hydraulic pumps. Again the general rule is anything over 1000 RPM needs to be balanced.

When replacing a slip yoke on a spline stub, does alignment matter?

Yes, Proper phasing is required to eliminate vibration. Many slip yoke and stub shafts are marked at the factory with alignment marks to insure the correct tooth on the stub and slip are mated together. All shafts that leave our shop are marked with line up arrows to help the installer locate the proper alignment.