7B1-4
AUTOMATIC TRANSMISSION (4 A / T)
Item
Specifications
Torque
Type
3-element, 1-step, 2-phase type (with TCC (lock-up) mechanism)
converter
Stall torque ratio
1.9
Oil pump
Type
Trochoid type oil pump
Drive system
Engine driven
Gear
Type
Forward 4-step, reverse 1-step planetary gear type
change
device
Shift position
“P” range
Gear in neutral, output shaft fixed, engine start
“R” range
Reverse
“N” range
Gear in neutral, engine start
“D” range
Forward 1st
$
2nd
$
3rd
$
4th (O / D)
(O / D ON)
automatic gear change
“D” range
Forward 1st
$
2nd
$
3rd
(O / D OFF)
automatic gear change
“2” range
Forward 1st
$
2nd
z
3rd automatic gear change
“L” range
Forward 1st
z
2nd
z
3rd reduction, and fixed at
1st gear
Gear
ratio
1st
(low gear)
2.452
2nd
(second gear)
1.452
3rd
(top gear)
1.000
4th
(overdrive gear)
0.689
Reverse
(reverse gear)
2.212
Control elements
Wet type multi-disc clutch
3 sets
. . . . . .
Wet type multi-disc brake
4 sets
. . . . . .
One-way clutch
3 sets
. . . . . . . . . . . . . . .
Transfer
Hi : 1.000
Lo : 1.816 (4WD model only)
Final gear reduction
ratio (Differential)
4.300
Lubrication
Lubrication system
Force feed system by oil pump
Cooling
Cooling system
Radiator assisted cooling (water-cooled)
Fluid used
An equivalent of DEXRON
III
