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Service port size on the 4l60e

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Old 01-27-2009, 08:21 AM
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Default Service port size on the 4l60e
I tried searching but failed. What size fitting goes into the service port on the 4l60e? Is it 3/8NPT or smaller than that? I'm considering installing a temp gauge sender there.

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Old 01-27-2009, 09:57 AM
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Originally Posted by DanWS6
I tried searching but failed. What size fitting goes into the service port on the 4l60e? Is it 3/8NPT or smaller than that? I'm considering installing a temp gauge sender there.

Thanks!
It is 1/8" NPT
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Old 01-27-2009, 10:59 AM
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Well that sucks. I guess I should have checked that before ordering the gauge.
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Old 01-27-2009, 01:04 PM
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Originally Posted by DanWS6
Well that sucks. I guess I should have checked that before ordering the gauge.
I assume you are referring to the line pressure port or aer you talking the drain plug?
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Old 01-27-2009, 01:43 PM
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It's the sensor port that has nothing screwed into it.
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Old 01-27-2009, 01:47 PM
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On the left side of the transmission 7/16 head on it?
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Old 01-27-2009, 01:49 PM
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yes, driver side, I have no idea what size head the bolt is.
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Old 01-27-2009, 02:37 PM
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That is the 1/8 pipe for the line pressure. it is not the most accurate way to measure temperature. Ideally you want it in the pan.
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Old 01-27-2009, 02:42 PM
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That means taping the pan and trying to weld a bung in there correct? Can that even be done without leaks?
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Old 01-27-2009, 02:57 PM
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It can but takes a little work There are drain plug kits that you just drill through the pan and tighten together.http://store.summitracing.com/egnsea...115+4294847067
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Old 01-27-2009, 03:05 PM
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Originally Posted by tptransmission
It can but takes a little work There are drain plug kits that you just drill through the pan and tighten together.http://store.summitracing.com/egnsea...115+4294847067
i tried one of those on my stock trans and i couldnt stop the thing from leaking. it seemed like the fluid would find its way down the threads and leave a drop on the floor. it was very frustrating
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Old 01-27-2009, 03:07 PM
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Originally Posted by tptransmission
It can but takes a little work There are drain plug kits that you just drill through the pan and tighten together.http://store.summitracing.com/egnsea...115+4294847067
Thanks, I'll take a look.

Originally Posted by Badazz 97 TA
i tried one of those on my stock trans and i couldnt stop the thing from leaking. it seemed like the fluid would find its way down the threads and leave a drop on the floor. it was very frustrating
Thread sealer didn't work?
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