Transmission Temp. Gauge on a 6.8 L V-10 engine

Have both but if I had it to do again I would just get the scan gauge II, trans temp. and a whole lot more info. like real water temp. cylinder head temp. just to name a few, and at the end of each day driving a lot of info.

I had one added in the shop, there was an existing port in the E4OD. I also believe there is an existing port in your 5R110W transmission.

My 2008 came with one from the factory.

Years ago I added a tranny temp gauge on my 1989 Pace Arrow MH. Fairly easy job. I drilled a hole in the pan. (Remove it first) Make sure where the hole is drilled there is enough room for the probe inside the tranny. Some are pretty tight in space. I had a nut welded to outside of pan with same threads as probe.

I'd venture to say it's not necessary, but it's cool to watch as you are making those long climbs when in the mountains.

Another option is to get a ScanGaugeII and add the TFT gauge (Trans Fluid Temp) XGauge. You can add many other options as well.