7A±89 AUTOMATIC TRANSMISSION (4L30±E)
Main Data And Specification
General Specifications
Remarks
ModelTHM 4L30±E
EngineV6 3.5L 6VE1DOHC
TypeAutomatic 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 usedNameATF DEXRON)±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
7A±93 AUTOMATIC TRANSMISSION (4L30±E)
Special Tools
ILLUSTRATIONTOOL NO.
TOOL NAME
J±23075
Spring compressor
(For servo piston)
J±38450±A
Third clutch snap ring
compressor
J±23075±12
Third clutch spring
compressor adapter
(Use with J±23075)
J±23084
Third clutch piston
installer
J±23327
Third clutch spring
compressor
J±23080±A
Second clutch piston
installer
ILLUSTRATIONTOOL NO.
TOOL NAME
J±23085±A
Selective washer
gauging tool
J±23327±90
Fourth clutch spring
compressor
(Use with J±23327)
J±38553
3/4 Accumulator piston
fitter
J±41096
Cover remover
(Use with J±38584)
J±38584
Slide hammer adapter
(Use with J±23907)
J±38554
Fourth clutch piston fitter
7A±94
AUTOMATIC TRANSMISSION (4L30±E)
ILLUSTRATIONTOOL NO.
TOOL NAME
J±38588
Guide pins; adapter
case to main case
J±38555
Overrun clutch piston
seal installer set
J±3387±2
Guide pins; gasket and
transfer plate to valve
body
J±25022
Turbine shaft puller
(Use with J±24773±1)
J±23129
Oil seal remover
(Use with J±23907
and J±38584)
J±38557
Oil pump centering tool
ILLUSTRATIONTOOL NO.
TOOL NAME
J±23082±01
Oil pump rotation tool
J±25025±B
Guide pins; valve body
to main case
J±38428
Servo piston fitter
J±23327±91
Overrun clutch spring
compressor
J±38559±A
3/4 Accumulator piston
cover compressor
J±8763±02
Holding fixture
7A±96
AUTOMATIC TRANSMISSION (4L30±E)
4L30±E Parts List
Case And Associated Parts
241RY00021
Legend
(1) Torque Converter
(2) Screw, Seal Ring Assembly
(3) Seal Ring Assembly, Converter Housing
(4) Screw, Converter Housing/Main Case
(5) Screw, Converter Housing/Oil Pump
(6) Housing, Converter
(7) Plug, Converter Housing
(8) Seal, O±Ring
(9) Wear Plate, Oil Pump Body
(10) Pump Assembly, Oil
(11) Gasket
(12) Washer, Thrust Selective
(13) Ring, Snap
(14) Cover, 3±4 Accumulator Piston
(15) Seal, O±Ring, 3±4 Accumulator
(16) Spring, 3±4 Accumulator Piston(17) Pin, 3±4 Accumulator Piston
(18) Piston, 3±4 Accumulator
(19) Ring, 3±4, Accumulator Piston
(20) Case, Adapter
(22) Connector, Electrical/Adapter Case
(23) Screw, Pan
(27) Restrictor, Oil
(28) Gasket, Transfer Plate/Adapter
(29) Plate, Transfer Adapter/Center Support
(30) Support Assembly, Center
(31) Screw, Center Support
(32) Ring, Oil Seal
(33) Seal, O±Ring Main Case
(34) Fitting, Cooler
(35) Fitting Assembly, Cooler
(36) Case, Main
(37) Breather, Pipe