What second gauge - trans temp or boost?

[DMosby]

I have a new RAM 2500 with the Cummins 6. 7 and auto transmission.



Just had new bumpers and winch installed and while that was getting

done had EGT installed. The gauge is in a pod above the rear view

mirror and has space for a second gauge. I was going to have

transmission temp there but because there was no place in the pan

for a temp probe that wasn't installed.



I did find a clamp that will let me put a temp probe on the fluid

line (slight lower temp reading ) or I can put a "T" in the line.



Before I charge ahead with the transmission temp I'd like to know

what might be the most useful second gauge. The truck will get

used for towing a light trailer on long camping trips.



I plan to keep it stock meaning no performance chips. Other popular

gauge seems to be boost, but if it stays stock would that be useful?



Seems that I might as well fill the remaining space with something

so I'd like to hear what would be useful.

 

[AllianceDiesel]

trans temp is always a good one to watch, but if you are looking for mileage you want a boost gauge to watch what your boosting at, you get better mileage with lower boost so you can watch what your right foot is doing.

 

[TroyWood]

you can get a new pan with a factory threaded hole. plus it holds an additional 3 quarts



MAG-HYTEC - 68RFE TRANSMISSION PAN ('07. 5-'08, 6. 7L DODGE)-Dodge Cummins and Ford Power Stroke Diesel Truck Accessories - Geno's Garage

 

[Matt400]

Trans temp is more useful IMO. Can't say on your trans but on mine the warning goes off at 275 and thats in the pan!

You could have both a Boost/Temp gauge here.