I just finished my transmission guage install on my '06 48re. I used the AutoMeter Ultra Lite Series II guage and the a-pillar guage mount from the SRT truck. I have previously installed the Mag Hytec DD pan with the temperature sender port located on the rear of the pan, midway the depth of the pan. I have only been around town so far here in the FL sunshine with ambient temps at 88 degrees. I did accelerate hard thru the gears a few times. My guage has not gone past 160-165. So how does that sound??? I don't know what is normal since I previoulsy had no guage or aftermarket pan. I installed a guage mainly to monitor transmission temp while towing a 9000 lb fiver. THANKS> PCM
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i have seen 190 before...hot days stuck in traffic with accelerating and slowing down but nothin to worry bout since tranny fluids rated to 230

 

I haven't done this yet but is in the top five of my list of things to add prior to buying a 5th wheel.

Anyway from my research on here the consensus I get is that the fluid going to the trans cooler is the best place to measure tranny fluid temps. there is an adapter at Geno's garage that is meant to allow the sensor to be clamped to the hot pipe. Also Diesel Manor make a replacement hot line from the tranny to the cooler with a 1/8 npt port built in to it that does not restrict fluid flow (this is the route I plan to go).

Seems the trans pan will give you a "sense" of temps, but temps will be somewhat lower than what you find going from the transmission through the hot line to the cooler.

No experience of this myself yet, just what I think I have learned from the collective knowledge of this forum.

 

I appreciate the input. I it. I have read the many posts about where the sending should be located. THere is even debate that the deeper pans are not a benefit. At any rate, I am going to just leave it in the pan since its already there. I sure can't hurt or being any worse than having no sender/guage at all, like stock. There is an idiot light on the dash, too. So since I tow a fiver, I just wanted to have something as a reference point.

 

I can easily get my gauge past 200 degrees, but my sending unit is in the line to the cooler, so it'll read higher than a pan mount sending unit. I have a double deep pan, but I dont think it helps it run cooler. It takes longer to heat the tranny fluid up, but it'll still reach the same temps.

 

I have the same truck....06 2500 4x4 quad cab. I put a mag hytec pan on mine, but just the D, not the DD. unloaded mine is the same as yours. 160 in the summer. I've pulled about 7000 lbs through town and just hit 170. The deeper pan probably doesn't make all that much difference when all things are considered. What i like about it is the drain plug and a tapped hole already there for the temp sensor.

as for sensor placement, I like my sensor in the pan. I know it doesnt restrict any flow and I look at the temperature relative to what it normally runs. In other words, if I'm at 175 deg and 20 minutes later i've shot up to 195, I know I'm starting to run hot. To put it in a transmission line, if you normally show 195, then 20 minutes later show 215................its the same thing. Both net a 20 deg raise.

 

Basically same truck ,06 3500 ,305 55 20, tires 373 48re ,sensor in the valve body, pulling a 14000 lb fiver ,will hit 220 on a 7-8 % grade ,40 mph, flat pull 180-190, 80 -85 outside temp, 6 % grade 210, edge on tow mode,never run over 1200 egt on long grades