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Old 12-30-2019, 02:59 AM   #1 (permalink)
DMaxEnvy
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LB7: Output shaft speed sensor?

Passenger side rear of transmission. I have a sensor that is leaking. Is this the output shaft speed sensor? If not, which sensor is this?





Thank you in advance for your help.

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Last edited by DMaxEnvy; 12-30-2019 at 03:00 AM.
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Old 12-30-2019, 11:28 AM   #2 (permalink)
Rvn4me
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There are three-- Bell housing-[engine speed], Top of trans-[turbine speed], and tail housing-[2x4] on 4x4 the tail hsg one is on the back of the transfer case- [road speed].

By your location description sounds to be your Allison Internal Wire Harness plug is leaking.
GM Part :29541371 Allison Internal Wire Harness 01-03, Without G Solenoid
The o-ring that leaks is 24223704

Is this where your leak is at? And easy fix.



Last edited by Rvn4me; 12-30-2019 at 11:41 AM.
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Old 12-30-2019, 11:59 AM   #3 (permalink)
DMaxEnvy
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Quote:
Originally Posted by Rvn4me View Post
There are three-- Bell housing-[engine speed], Top of trans-[turbine speed], and tail housing-[2x4] on 4x4 the tail hsg one is on the back of the transfer case- [road speed].

By your location description sounds to be your Allison Internal Wire Harness plug is leaking.
GM Part :29541371 Allison Internal Wire Harness 01-03, Without G Solenoid
The o-ring that leaks is 24223704

Is this where your leak is at? And easy fix.
https://m.youtube.com/watch?v=rOhsheXZki4
Yep, that is where it is leaking! Thank for the youtube link...a picture, or video, is worth a thousand words...

That will be a nice easy fix
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'07 North River 21' Seahawk...can you say 'Tuna!'
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