CAUTION: Install the fill tube bracket with the correct length M8 selftapping screw which is 24.0 mm (0.95 inch). A screw that is too long may cause cracks and leaks in the main housing. Refer to AS64065 in the Allison Sales Tech Data Book on the Allison Extranet for the correct screw specifications. b. Installation. If the fill tube will interfere with the installation of the transmission, delay this step until after the transmission is in the vehicle. Install the fill tube seal into the main housing. Insert the fill tube through the seal until the shoulder at the bottom of the fill tube contacts the seal. Align the tube bracket with its bolt location. Install the fill tube bolt and tighten until it is firmly seated against the bracket.
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