I see that Geno's carries a bolt in after drilling transmission pan adapter to install a temperature sender. Seems you drill a hole in the tin pan and install the compression fitting. Does this sounds like a viable option to buying an after market aluminum pan for a couple three hundred bucks? My transmission is due for service and seems like a good time to add the temp gauge.

Sorry, delay in the response, I keep forgetting to subscribe to the threads! I was bolted to the return line, going back into the trans...I can't remember off the top of my head if that's before or after the cooling, but it worked for me... I've since sold the truck, so I can't check on it, and since I have a manual now, I don't have any need for another trans temp gauge...

Manual tranny rigs need temp gauges even more so than autos if you tow anything with weight to them. I have seen input shafts and bearings literally turned to molten lava they have been so hot, when I worked at the gear shop we talked many heavy haulers into tranny temp sensors on manuals and a lot came back in disbelief of how hot and how fast they get hot and how much of a difference it made pulling in direct versus OD on them. As far as the auto tranny the rear line going into the tranny is the cold line coming back from the cooler circuit, the front line is the hot line from the TC..

What am I missing? I removed the stock elect pick up right where the oil leaves the tranny going to the cooler and installed my temp, sender. Figured the stock set up would only notify me long after it was to hot for my taste. Stock unit removed throws no code.

What am I missing? I removed the stock elect pick up right where the oil leaves the tranny going to the cooler and installed my temp, sender. Figured the stock set up would only notify me long after it was to hot for my taste. Stock unit removed throws no code.

Not sure what you removed but the stock sensor is integrated into the valve body inside the tranny. The hot line leaving the tranny for the cooler circuit is the front line on the driver side of the tranny and there is no factory sensor in that area.

On my old 94 and current 2001 the sender was right next to the tranny on drivers side tube going to the cooler.

Not sure what you removed but the stock sensor is integrated into the valve body inside the tranny. The hot line leaving the tranny for the cooler circuit is the front line on the driver side of the tranny and there is no factory sensor in that area.

On my old 94 and current 2001 the sender was right next to the tranny on drivers side tube going to the cooler.

From my understanding, the OE temp sensor is in the Pressure Sensor module that is mounted next to the Gov. Pressure Solenoid. That would be the case for all 47RE ('96-up). Your '94 was a 47RH. It has an externally-mounted temp sensor.

^^^^^^^^^^^^Yep what he said, if your 01 has an external temp sensor in the line it had already had a tranny temp gauge added at some point. The line we replace on the 47 RE tranny to gain the external temp sensor port is from a 94 model.