Cadillac 1967 VVI Data Book page 143

TRANSMISSION
Your 1967 Cadillac is equipped with a Turbo Hydra-matic
transmission. The transmission shift indicator has six positions
marked park " P " , reverse "R", neutral "N", drive "DRIVE"
(left and right positions), and low "L".
An arrangement of steps in the steering column restricts
a straight line movement of the shift lever. It is necessary to
pull up on the lever when shifting into and out of park " P " ,
when shifting out of neutral "N" into reverse "R", when
shifting from the left hand "DRIVE" position to the right hand
"DRIVE" or "LOW" position.
"Drive" range—left hand
In drive range, with the indicator in the left hand "DRIVE"
position, three forward speeds are available. The left hand
"DRIVE" position is used for all normal driving. This permits
the transmission to operate through its complete range of gear
ratios and select the proper gear ratio for road and load
conditions.
PASSING—for passing at moderate speeds, 30-45 miles per
hour—depressing the accelerator pedal only part way will
usually provide sufficient acceleration. When additional acceler-
ation is required, such as when passing at higher speeds, press
the accelerator all the way down. This downshifts the trans-
mission into second gear.
"Drive" range—right hand
In hilly terrain—the right-hand "DRIVE" position may be
used. In this position, only first and second speeds are available,
improving acceleration and deceleration. The right-hand
"DRIVE" position also reduces shifting on hills, provides
more control on slippery pavement, and decreases brake
usage when descending medium grades. It may be selected
at any car speed.
"L" low range
"L" Low range provides maximum engine braking assist. It
should always be used when going down very steep grades
and where traffic signs call for first or second gear.
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