Glossary “three speed differential” Definition:
A type of two-speed axle arrangement with the capability of operating both axles at a different speed at the same time. The third speed is actually an intermediate speed between the high and low range.
three quarter floating axle
Glossary “three quarter floating axle” Definition:
An axle in which the axle housing carries the weight of the vehicle while the bearings support the wheels on the outer ends of the axle housing tubes.
three piece valve
Glossary “three piece valve” Definition:
Intake or exhaust valve made of three different types of material in the head, stem, and tip.
three phase
Glossary “three phase” Definition:
Type of electrical power such as that produced by an alternator.
three on the tree
Glossary “three on the tree” Definition:
Three speed manual transmission having a column-mounted shifter.
three mode cycle
Glossary “three mode cycle” Definition:
A quick test procedure to study the causes of high emissions performed on a dynamometer under load or in a service bay without a load.
three dimensional measuring system
Glossary “three dimensional measuring system” Definition:
A measuring system that can locate points with the dimensions of length, width, and height, relative to three defined reference planes.
three body sections
Glossary “three body sections” Definition:
For simplicity and to help communications in the auto body repair, a vehicle is divided into front, center, and rear sections.
threaded insert
Glossary “threaded insert” Definition:
Threaded coil that is used to repair a damaged internal thread.
threaded fastener
Glossary “threaded fastener” Definition:
Any of several types of components that hold parts together in assembly by interference of screw threads with mating threads in another component, such as capscrews, self-threading screws, stud-and-nut, and bolt-and-nut assemblies.
thread series
Glossary “thread series” Definition:
Standard designation of the number of threads and their pitch per unit, inch or millimeter.
thread pitch gauge
Glossary “thread pitch gauge” Definition:
Device that measures bolt thread pitch.
thread pitch
Glossary “thread pitch” Definition:
The distance of the threads on a fastener. Also, the number of threads along a certain length.
thread compound
Glossary “thread compound” Definition:
Thread compounds take up the space between the threads after tightening and harden to form a bond between the internal and external threads. The difference between the compounds relate to the temperature range it can withstand and the type of metal it works with.
thread class
Glossary “thread class” Definition:
Standard designation to indicate the closeness of fit between two threaded parts, such as a bolt and nut.
thread chaser
Glossary “thread chaser” Definition:
Device, similar to a die, that is used to clean threads.
thousandths
Glossary “thousandths” Definition:
One part of a thousand.
thousand
Glossary “thousand” Definition:
A number equal to ten times one hundred.
third member
Glossary “third member” Definition:
Term for differential.
third gauge
Glossary “third gauge” Definition:
Low side gauge used to check pressure drop across a suction-pressure regulator at the compressor inlet on some car lines.