Page 5767 of 6000

7A–78
AUTOMATIC TRANSMISSION (4L30–E)
Install overrun clutch piston assembly (13). Use the
outer installer while pushing piston into drum (14).
Remove the installer.
252RW012
252RW013
3. Install diaphragm spring (12).
4. Install overrun clutch release spring retainer (11) (lip
faces upwards), overrun roller clutch assembly (10),
and cam (9).
5. Place snap ring loosely on spring retainer.
Hold the 5–8840–2275–0 (J–23327–91)
compressor in a vise and compress piston return
spring with compressor.
Set snap ring (8) in ring groove.
Remove the compressor.
6. Install clutch plates (7), start with steel plate and
alternate with lined plates.
7. Install backing plate (6).
8. Install snap ring (5).
9. Install overdrive sun gear with countersink pointing
downwards.
10. Install the overdrive carrier assembly (2).
NOTE: Tu r n t h e a s s e m b l y i n a c o u n t e r – c l o c k w i s e
direction only until roller clutch enters the outer race.
After installation, rotate the assembly and listen for loose
rollers.
11. Install turbine shaft (4) and snap ring (1).
Page 5768 of 6000

7A–79 AUTOMATIC TRANSMISSION (4L30–E)
Main Data And Specification
General Specifications
Remarks
ModelTHM 4L30–E
EngineV6 3.2L 6VD1 or V6 3.5L 6VE1DOHC
Ty p eAutomatic four speed overdrive in
4th gear lock–up clutch torque
converter
Shift controlHydraulic
Control systemsShift patternElectronicControl systemsShift qualityElectronic
Lock–up clutchElectronic
1st2.856
2nd1.618
Gear ratio3rd1.000
4th (O/D)0.723
Reverse2.000
Gear setNoiseless, high torque capability
Oil usedNameAT F D E X R O N–IIIOil usedQ’ty liter (qt)8.6 (9.1)
Torque converter2,100 150Stall speed (rpm)
Reverse clutchRC4
Second clutchC26Number of discsThird clutchC36Number of discs
Brake bandDouble wrap
Fourth clutchC42Number of discsOverrun clutchOC1Number of discs
OverdriveOFW10Number of rollers
PrincipalPFW26Number of sprags
Input sun gear30
Pinion gear19
Ravigneaux plan-Long pinion23g
etary gear setRing gear90
Long pinion19Number of teeth
Output sun gear46
Odi l
Sun gear31
Overdrive plane-
tary gear setPinion gear24tary gear set
Ring gear81
Page 5769 of 6000
7A–80
AUTOMATIC TRANSMISSION (4L30–E)
Torque Specifications
E07RY00011
Page 5770 of 6000
7A–81 AUTOMATIC TRANSMISSION (4L30–E)
E07RW079
Page 5771 of 6000
7A–82
AUTOMATIC TRANSMISSION (4L30–E)
E07RW047
Page 5772 of 6000
7A–83 AUTOMATIC TRANSMISSION (4L30–E)
Special Tools
ILLUSTRATIONTOOL NO.
TOOL NAME
5–8840–0501–0
(J–23075)
Spring compressor (For
servo piston)
5–8840–2258–0
(J–38450–A)
Third clutch snap ring
compressor
5–8840–2259–0
(J–23075–12)
Third clutch spring
compressor adapter
(Use with
5–8840–0501–0
(J–23075))
5–8840–2260–0
(J–23084)
Third clutch piston
installer
5–8840–0195–0
(J–23327)
Third clutch spring
compressor
5–8840–2261–0
(J–23080–A)
Second clutch piston
installer
ILLUSTRATIONTOOL NO.
TOOL NAME
5–8840–2262–0
(J–23085–A)
Selective washer
gauging tool
5–8840–2263–0
(J–23327–90)
Fourth clutch spring
compressor (Use with
5–8840–0195–0
(J–23327))
5–8840–2264–0
(J–38553)
3/4 Accumulator piston
fitter
5–8840–2403–0
(J–41096)
Cover remover (Use
with 5–8840–2266–0
(J–38584))
5–8840–2266–0
(J–38584)
Slide hammer adapter
(Use with
5–8840–0019–0
(J–23907))
5–8840–2267–0
(J–38554)
Fourth clutch piston fitter
Page 5773 of 6000
7A–84
AUTOMATIC TRANSMISSION (4L30–E)
ILLUSTRATIONTOOL NO.
TOOL NAME
5–8840–2268–0
(J–38588)
Guide pins; adapter
case to main case
5–8840–2269–0
(J–38555)
Overrun clutch piston
seal installer set
5–8840–2270–0
(J–3387–2)
Guide pins; gasket and
transfer plate to valve
body
5–8840–2271–0
(J–25022)
Turbine shaft puller (Use
with 5–8840–0618–0
(J–24773–1))
5–8840–0196–0
(J–23129)
Oil seal remover (Use
with 5–8840–2266–0
(J–23907) and
5–8840–0019–0
(J–38584))
5–8840–2272–0
(J–38557)
Oil pump centering tool
ILLUSTRATIONTOOL NO.
TOOL NAME
5–8840–2273–0
(J–23082–01)
Oil pump rotation tool
5–8840–0022–0
(J–25025–B)
Guide pins; valve body
to main case
5–8840–2274–0
(J–38428)
Servo piston fitter
5–8840–2275–0
(J–23327–91)
Overrun clutch spring
compressor
5–8840–2277–1
(J–38559–A)
3/4 Accumulator piston
cover compressor
5–8840–2278–0
(J–8763–02)
Holding fixture
Page 5774 of 6000
7A–85 AUTOMATIC TRANSMISSION (4L30–E)
ILLUSTRATIONTOOL NO.
TOOL NAME
5–8840–2282–0
(J–36797)
A/T extension housing
oil seal installer (Inside)
5–8840–0003–0
(J–3289–20)
Holding fixture base
5–8840–0004–0
Pressure gauge
5–8840–0618–0
(J–24773–1)
End play fixture (Use
with 5–8840–2271–0
(J–25022))
5–8840–0019–0 &
5–8840–2000–0
(J–23907)
Slide hammer