The Shaft
This square little component is sometimes tack welded to the shaft to ensure proper balancing of the drive shaft
What is a Weight
This component is referred to as the Weakest Link in the driveline system
What is a U-joint
This issue can cause vibrations that increase in severity with increases in Road Speed
What is an Imbalance Driveshaft
This type of adjustment failure can cause "Chattering" inside the differential Carrier assembly
What is a Too Loose Adjustment
This component when replaced should be inspected for Seal Wear Groves along it's shaft, if found, should be cleaned with sandpaper or emery cloth
What is a Pinion Yoke
This term refers to the correlation of the postion of the yokes at each end of the Driveshaft as that they are in Matching positions
What is In-Phase
This component is circular in shape and is responsible to retaining interior bearings that allow a U-joint journal to rotate on
What is a Trunnion
This type of failure can be represented by a single "Clunk" sound when shifting from forward to reverse, when first accelerating, and when slowing down
What is a Failing U-joint
This is the style of tooth shape used in the "Drive" side of the ring gear teeth
What is Convex
What is the Finger- 2 line method
This term refers to Yokes at each end of the driveline that are Offset of each other and may cause driveline imbalancing
What is Out of Phase
This is the type of bearings that are found in the Bearing "Cups" of a u-joint
What is a Needle Bearing
This type of failure can be found with abnormal grinding sounds while the vehicle is in a turning manuever
What is a failed Spider Gear
This technique is used to assess the Tooth Engagement on the ring and pinion gear
What is a Contact Pattern Test/Paint Pattern Test
This sealant is used to seal the Differential Carrier assembly to it's housing
What is RTV Silicone
This safety technique is used to create a "cradle" while installing a driveline to prevent the component from falling on the technician while underneath
What is a Ratchet Strap to the Frame Technique
This style U-joint has no zerk fittings are sealed for life, most commonly found on tractors with Automated Manual Transmissions
What is an RPL style U-joint
This type of failure can be found with "Grinding" sounds coming from the differential Carrier assembly
What is Gear Teeth Failure/Bearing Failure
This measurement is used to gauge Pinion Depth and is measured with a Dial Indicator
What is a Pinion Seal
This component is responsible for allowed the drive shaft to expand and contract it's length to accommodate changes in length from the transmission output to the differential carrier
What is a Slip Yoke
This is the brand name of tools often use as Pullers and Presses that are effective and dependable in replacing and servicing U-joints on heavy Duty tractors
What is Tiger Tools
This component when broken will not allow energy to travel to it's wheel end and can be heard clunking inside the differential housing while in motion
What is a Broken Axle Shaft
When failed, this component will cause the Differential Carrier receiver yoke to become loose and leak fluid
What is Pinion Gear Bearing Failure
This component allows for expansion and vapors developing inside the differential housing to escape in the atmosphere and should not be missing or facing upwards.
What is a Differential Breather tube