I finally got my guages installed. I have the 140-320 trans temp and I waas wondering what temp the trans runs at. The reason that I ask is that I put 40 miles on the truck and the guage never moved. I double checked the connections and all is good there, just hoping that I didn't get a bad guage.

 

The gauge starts at 140? If so and the truck was cold it will take more miles than that. In cold
Weather just crusing I'm lucky to get the temp to 140.

 

Hottest my tranny has ever been on the gauge is right around 165... so you will hardly ever see your gauge move. Mine likes to sit right around 130 unless I'm in traffic...Then it comes up.

 

You didn't get a bad gauge, you got the wrong gauge. You need to get a gauge that starts atleast as low as 100*. Depending on how cold the weather is, you might not reach 140* unless towing or having a load on the engine/trans.

 

yea, at these temps, with a jw trans, and 6.0 cooler, i haven't seen over 120 in two months.

 

What they said. over 300 say bye bye to the trans.

 

Thanks guys, I guess that I need to get the right one then

 

Not true. They will live above 300F. You don't want to be there for very long, but it isn't true that it dies at 300F.

 

I think your fine with the gauge you have.....I've had the same one for over seven years. When it's cool/cold outside then your trans mission will take a good while to warm up.....especially if you have the 6.0 tranny cooler.

 

I didn't say it dies, but I haven't seen one yet that didn't drop fuild out the bottom at that temp. Over 300 it is not long to live in my experience. See I did drop fuild in mine two on the beach pulling a towhauler, shut it down let it cool added three quarts atf drove home 150 miles end of weekend. Changed all out it lived for one year then, died.

 

Anyone got a picture of the 6.0L trans cooler?
I was putting a badge in my grill and i noticed that my cooler isn't stock or its been relocated cause whoever did it used some weird square bolts that rusted and its in a weird spot.

Also to the OP i have a 140 gauge as well and i thought mine wasn't working either until i was coming out of a steep drainage my trans got to 145. I was really happy to see the gauge move.