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Definition Of:

Overdrive

Engineering DictionaryDictionary of Automotive Terms
A unit with a planetary gearset which turns the driveshaft faster than the transmission output shaft . Sometimes the overdrive is an additional gearbox which is mounted in the driveline . Normally the final drive ratio is 1:1; but the overdrive makes it less (e.g., 0.87:1). The overdrive can reduce gas consumption at sustained high-speed driving, engine noise, and engine wear. Also called "overdrive transmission."
See also: PAIR , WAIS , BAC , I-beam suspension , DBC

 

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A
A Bone
A-2 tire
A-arm
A C
A C CIRCUIT
A D Converter
A F ratio
AAA
AABM
AAC
AAE
AAIA
AALA
AAM
AAMA
AAP
AAS
AAT
AAV
ABC
ABCM
ABDC
ABI Inform
ABMA
ABRASION
ABRASION RESISTANCE
ABRASIVE EROSION
ABS
ABSOLUTE HUMIDITY
ABSOLUTE TEMPERAT...ABSOLUTE ZERO
ABSOLUTE ZERO TEM...
ABSORBENT
ABSORBER
ABSORPTION
ABSORPTION REFRIG...ABSORPTION REFRIG...ABSORPTION SYSTEM
ABSORPTION TOWER
ABUS
ABV
AC
AC Ace
AC Aceca
AC Buckland
AC Linearity
AC Shelby Cobra
ACC
ACC(2)
ACCELERATION DUE ...
ACCELERATION PERIOD
ACCELERATOR
ACCEPTABLE WELD
ACCESSIBLE HERMETIC
ACCUMULATOR
ACE
ACEA
ACETONE
ACID
ACID ATTACK
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ACRS
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ACTION
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ACTIVE SYSTEM
ACTUATOR
ACV
ADA
ADB
ADEFA
ADIABATIC
ADIABATIC CHANGE
ADIABATIC COMPRES...
ADIABATIC COOLING
ADIABATIC EFFICIE...ADIABATIC EXPANSION
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ADIABATIC SATURAT...ADJUSTABLE DIFFER...
ADJUSTABLE RESISTOR
ADR
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