Toyota Tacoma 1999 Operating Manual page 98

(c) A.D.D. (automatic
disconnecting differential)
Steel wheels
Aluminum wheels
98
The A.D.D. can be engaged or disen-
gaged by the shifting operations de-
scribed in "(d) Shifting procedure".
You should drive in four- wheel drive for
at least 16 km (10 miles) each month.
This will assure that the front drive com-
ponents are lubricated.
'99 Tacoma (U)
(d) Shifting procedure
(lever type with manual
transmission)
SHIFTING BETWEEN "H2" AND "H4"
With free- wheeling hubs
To shift from "H2" to "H4", move the
front drive control lever. Also, engage both
the free- wheeling hubs.
This can be done when the vehicle is
stopped, or moving straight
speeds of 40 km/h (25 mph) or less. You
need not depress the clutch pedal. If you
have trouble shifting, depress or release
the accelerator pedal momentarily while
pushing the front drive control lever.
CAUTION
"
Never move the front drive control
lever if wheels are slipping. Stop
the slipping or spinning
shifting.
"
Never drive with only one hub en-
gaged.
To shift from "H4" to "H2", simply move
the front drive control lever. Also, disen-
gage both the free- wheeling hubs for con-
tinued "H2" use.
This can be done at any vehicle speed.
You need not depress the clutch pedal.
ahead at
before