2022 Allison Trans problems

SmokeStacks

New member
Jul 21, 2022
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Got 6,000 miles on it and the seal between the transfer case and trans is leaking. Took back to dealer and drove it 100 miles and leaking again. So back to the shop again. It only leaks while driving you can run it all day setting still and will not leak. Any suggestions.
 

SmokeStacks

New member
Jul 21, 2022
4
0
1
I wonder if there is a vent that is plugged on trans or transfer that’s causing it. Even it is was I don’t know where they are at.
 

2004LB7

Well-known member
Dec 15, 2010
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Norcal
I wonder if there is a vent that is plugged on trans or transfer that’s causing it. Even it is was I don’t know where they are at.
top near the back of the transmission should have a vent. black plastic thing a little off to the drivers side just before the adapter
 
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