NMC-WOLLARD 2021Truax Blvd., Eau Claire, WI 54703, Phone (715) 835-3151, Fax (715) 835-6625
M100 Tow Tractor Manual No. 46052
DECEMBER 15, 2013
PAGE 175
CHAPTER 5 MAUFACTURER’S INFORMATION
GM 4L70 TRANSMISSION
© 2013 General Motors. All rights reserved
Manual Shift Shaft Seal Replacement
Special Tools
J 43911 Selector Shaft Seal
Remover
J 43909 Selector Shaft Seal
Installer
Removal Procedure
Disconnect the range selector lever
cable and lever from the manual
Ensure that the jackscrew for J
43911 selector shaft seal remover
is backed off and will not interfere
with installation of the removal tool.
Slide the seal remover tool over the
selector shaft (2) with the threaded
end of the tool towards the seal.
Rotate the removal tool so that the
threads on the end of the tool
engage the steel shell (1) of the
seal. Use a wrench to ensure that
the removal tool is firmly attached
Rotate the jackscrew in the
clockwise direction to remove the
seal from the bore. Discard the sea
Installation Procedure
Carefully slide a new selector shaft
seal (1) over the selector shaft (2)
with the wide face of the steel case
facing outward. Position the seal so
that it is starting to enter the seal
Obtain J 43909 selector shaft seal
installer and remove the inner
sleeve so that the tool will slide ove
Slide the J 43909 selector shaft
seal installer into position so that
the end of the tool contacts the sea
being installed. Use a mallet to
strike the J 43909 selector shaft
seal installer and drive the new sea
into the bore until it is seated at the
Install the shift lever nut and shift
lever and tighten to 31 N m
Fill the transmission to the proper
level with DEXRON® VI
transmission fluid. Refer to
Transmission Fluid Level and