powershift
twin-clutch gearbox
synchromesh
tranny
stickshift
stick shift
auto
standard transmission
downshift
gear train
four-wheel drive
synchronizer
linkage
reverse gear
mechanotransmission
automatic drive
automated manual transmission
PRNDL
automatic transmission
dual-clutch gearbox
grip
gearknob
patch
shuffler
gearbox
clutch
four-on-the-floor
self-changing
driving band
cambox
tramway
standard
tractor
mechanotransductor
decompactor
moving part
tape drive
gearstick
muffle
friction drum
semi-automatic
Rube Goldberg machine
semi-automatic transmission
second gear
toolholder
multimachine
gearset
thermode
shifter
gearshift