Ingeniero

GM SPECIAL TOOLS

4L30E

Overrun Clutch Piston Installer

Overdrive Clutch Piston Installer

(Outer Seal)

(171.45mm Dia)

No illustration

No illustration

Part No. 4L30E.TOOLPart No. 4L30E.TOOL01

Universal End Clearance Gauge

Oil Pump Remover & End Play Checking
Fixture

Part No. TOOL.05

Part No. 4L30E.TOOL02
Second Clutch Piston Seal
Installer/ProtectorOverrun Clutch Piston Installer
(Inner Seal)
No illustration

Part No. 4L30E.TOOL03
Part No. 4L30E.TOOL04
Valve Body Parts Stripping Tray
Overdrive Inner Lip Seal Installer

No illustrationPart No. 4L30E.TOOL05

Part No. TOOL.03
1204

GM SPECIAL TOOLS

4L30E CONT…
Hydraulic Transmission Tester

Test the transmission with fluid under pressure, the Hydraulic Tester
simulatesoperating conditions in the unit and finds problems instantly.
The Hydraulic Tester finds hidden defects in soft parts or can alert you
to hard parts that have grown out of tolerance. A simple hook up toa
unit test plate and the reading of a single gauge allows you to test a
transmission in or out of the vehicle

Part No. TOOL.139
Unit Test Plate for 4L30E

Part No. 4L30E.TOOL06
GM Snap RingRemoval Tool

Universal Oil Seal Removal Tool
Use with slide hammer

Part No. TOOL.26

Part No. TOOL.41

SF-99 Servo Bore Repair System
Master Kit, For use with General Motors THM 180, THM180 C,
and 4L30E type transmissions
Release oil for the rear servo in THM 180 and it's four speed successor, the
4L30E, also happens to be apply oil for the third clutch. Normally, the tight fit
ofthe pin in it's bore seals the oil, allowing the transmission to use the servo's
release as an accumulator. The problem is that as the servo applies and
releases, the pin wears the case. This wearin the case creates a gap through
which third clutch oil leaks, causing a lack of apply pressure to the clutch and
release pressure on the servo. With this loss of pressure, the transmission's...