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AUTOMATIC TRANSMISSION
21 - 43
A-998/999/727 AUTOMATIC TRANSMISSION
GENERAL INFORMATION
INDEX
Page
Operating Instructions . . . . . . . . . . . . . . . . . . . . . .
48
Recommended Fluid
47
Torque Converter . . .
43
Transmission Application .
43
TRANSMISSION APPLICATION
Chrysler A998/999 a n d A-727, three-speed
auto-
matic transmissions are used i n A D models. A l l are
f u l l y automatic, h y d r a u l i c a l l y operated units w i t h a
compound planetary gear system (Figs. 1 and 2). The
A-998/999 transmission i s used for 3.9L and 5.2L ap-
plications. The A-727 is used for 5.9L applications.
TORQUE CONVERTER
A three element torque converter is used. A lockup
torque converter is used w i t h A-998/999 transmis-
sions. A-727 transmissions are equipped w i t h a non-
lockup converter.
Page
Transmission Controls And Components . . . . . . . . 47
Transmission Identification
47
Wide Ratio Planetary Gears
43
The converter i m p e l l e r is connected to the engine
crankshaft t h r o u g h the front cover w h i c h is welded
to t h e impeller. The t u r b i n e is splined to the t r a n s -
mission i n p u t shaft a n d the stator is splined to t h e
transmission reaction shaft.
The torque converter is a welded assembly and is
not a repairable component. The converter is serviced
as a n assembly only.
WIDE RATIO PLANETARY GEARS
A wide r a t i o planetary gear set is used i n A-998/
999 transmissions (Fig. 3). The wide ratio gears pro-
vide a 2.74:1 f i r s t gear and a 1.54:1 second gear.
T h i r d gear i s direct w i t h r a t i o of 1.00:1.
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