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Discussion Starter · #1 ·
i have had my gauges for a while now and i have yet to hook up my trans temp gauge because the guy that rebuilt my trans told me that if he puts the probe into the pan that it will always leak it may be just a little bit but it will be a pain. he told me that i need to get the sending unit that goes into my cooler line does anyone know where i can get this sending unit at? or have you ever heard of it thanks for the help
 

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Will the sender you have fit the trans test port?
 

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You want the sender in the test port on the side of the tranny near the gear shifter linkage. I’m not at all a fan of putting the sensor in the pan. I have a second tranny temp gauge in the hot side cooler line, All I did was get a compression T the same size as the cooler line with the 3rd side of the T having a 1/8” pipe thread so I could screw my sender into it after I cut the line about 6” from the tranny and put the fitting in. The Cooler line gauge reacts way different that the standard port gauge most folks have. I was towing my 2 antique tractors yesterday about 20 mph climbing a long hill and the case said 145* but the cooler line shot up to around 250*. One other problem with the line gauge is if for any reason the fluid stops flowing to the cooler then your gauge will show fine but your tranny would be melting. This is why I have two gauges, I need the normal port gauge but like to watch the hot side cooler line.
 

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Mine is also in the test port-drivers side right above the pan(you should be able to see the 1/4 inch plug)
 

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Here is some visual help for you;
At the top right corner of the pic you can see the black greasy wire with the dirty red ring terminal going to the sensor in the test port just above the edge of the pan. At the bottom left you can see the blue wire going to the sensor in the T I plumbed into the hot side cooler line.


 
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