I do have a Bluetooth obdii adapter and torque pro. Last temp reading I saw was 194 degrees. Maybe it's the way the gauge is designed. Seems too low since "normal" isn't straight up like in my zj.Oil pressure on vortec motors can be quite low at idle. GM won't even call it low until it's below double digits. As long as it comes up at higher RPMs you're fine. With a high mileage motor it's going to be hard to raise it much, even with an oil pump change.
Operating temps, IIRC your earlier generation ought to also have a 195F thermostat. But there are also 180F and 175F available, listed as 'alternates'. Yours appears to have a 180F.
If you can lay hands on an OBDII scan tool (or equivalent*) you could look up the actual temperature sensor reading, instrument gauges are not always accurate. Needles get moved, stepper motor response can change. Your actual temperature might not be what is displayed. But if you deliberately put in a 195F thermostat and your gauge reads 195F, then such a possibility can be dismissed.
* I have a Panlong bluetooth OBDII reader / transmitter, which I couple with an Android tablet and the Torque app. With it I can read / display much of the vehicle sensor data. And with that I can verify my dash needles, or re-install them properly after I've had things apart to replace dash lights or stepper motors. That's in my Hey Vortec Guys topic as well.
See my post above.What is the path forward on the rear diff? Mine is making some noise at 320k miles. 3.42 gears (I think) open diff.
Meh. Great, if you want to do the work / spend the money. But the only tens failing I know of happen when people can't take their foot off the gas when their rear wheels leave the ground. Kinda like the dolts that are breaking Raptors all over YouTube. They can't take abuse. They can take a huge amount of normal use and strain. But by all means you want to rock crawl, jump ****, or otherwise lurch 6000lb+ around by its gear teeth / clutches, you should consider the upgrade.
Thanks. Found out that she is doing better than they thought, follow up in six weeks.just a little
best wishes for your baby.