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 173
CHAPTER 5 MAUFACTURER’S INFORMATION
GM 4L70 TRANSMISSION
© 2013 General Motors. All rights reserved
2-4 Servo Cover Seal Replacement
Special Tools
J 29714-A Servo Cover Depressor
Removal Procedure
Raise and suitably support the
vehicle as required. Refer to
manufacturer’s instructions
regarding Lifting and Jacking the
Remove the 2 heat shield retaining
bolts and the heat shield from the
Remove the oil pan bolt below and
to the left of the 2–4 servo cover.
Install the J 29714-A servo cover
depressor to the oil pan rail.
Tighten the bolt on the J 29714-
A servo cover depressor in order to
compress the servo cover.
Loosen the bolt on the J 29714-
A servo cover depressor to release
tension on the servo cover.
Loosen the bolt on the J 29714-
A servo cover depressor to release
tension on the servo cover.
Remove the servo cover and O-ring
seal. If the cover is hung up on the
seal, use a pick (2) to pull and
stretch the seal (1) out of the
groove. Cut and remove the O-ring
seal before removing the cover.
Installation Procedure