Tranny temp ?'s

[sirhk100]

I remember a while back reading here somewhere that if your tranny hits 220 degrees you need to let it rest. I searched to refresh my memory but had no luck. What's your view on tranny operating temps? I just installed a guage yesterday. Also, I'm up on 32" tires with stock 3:73 gearing. I'm curious if this will cause my temp to be hire then normal? I'm planning on putting in 4:56s in a month or so. Will this help the tranny temp and life?

 

[guggy]

Tranny temp guage

sirhk100 S

Sorry i can't help with your tranny temp. question but i

was wondering if you could let me know how hard it

was to install your tranny temp gauge.

If you have any pointers on which brand or how to do this install i would greatly appreciate it.

Thanks

 

[AgExplorer]

As a general rule, for every 20 degrees F that you exceed the normal operating temp, you cut the life of the tranny in half.

For example, if the normal operating temp in 170 and the design life of the tranny is 100,000 miles and you exceed 190 (on a consistent basis), you will reduce the tranny's life to 50,000 miles. Get to 210 and you're down to 25,000 miles.

 

[sirhk100]

I bought an Autometer Trans temp guage. It was just under $50 with the sending unit and all. I also bought a can to mount it in on the dash. Install was fairly easy assuming you have the right equipment. I put mine sending unit in the pan. Basically, drop the pan, drill a hole, insert the collar, and braise it in so it doesn't leak. You can also get a seal and a nut to secure the collar if you don't have torches. then run the wires and your set. Some others have bought brass T-fittings to splice in the tranny fluid out-line and put the sending unit in there. It was fairly easy overall, just really messy dropping the pan. Let me know if you have other questions and I can go into more detail. Sorry but I don't have any pics.

 

[sholzee]

Most transmissions are cooled by the radiator, even if they have a remote cooler in front. So the temp should be around the same as engine temp. The temperature gradients are huge depending were the sensor is mounted. Tranny line to cooler will be hotter than tranny line from cooler. I think the best way is to install the sensor and take notes. Typical driving and loads monitor the temp, then maybe drive it harder or four wheel and see how the temp changes.

 

[sirhk100]

I'm actually surprised at how fast the tempature goes up and down. It will rise to 200 going up a 1 mile hill were it shifts out of OD and then once I get to the top it's back down to 180 degrees with in 30 seconds. I think the cooler on it is the factory one supplied with the towing package so I'm assuming cause I've never actually poked my head under to look that the fluid is running through the radiator also. What ever it's going through works though cause it cools the fluid fast once I get off the gas or what ever is causing the load. This next weekend I'll have a good grade to climb on a hot mid day so that'll be a good test and the following weekend I'll be doing the same grade with a trailer and 3 dirt bikes so that'll also be a good comparison. THEN, about a month from now I should be able to do all the same tests with my new gears which will be a jump from 32" tires and factory 3:73 to 32" tires and 4:56 which are recommended by the masses for running 33" tires which I'll switch to once these get worn down.