Use only ACDELCO, GM or something else that's recommended on this forum.
A lot of people have wasted time and money on aftermarket thermostats.
Check everything before replacing your thermostat.
Has your cooling stack been cleaned lately?
Check your thermostat in a pot of water.
I prefer a toggle switch.
I passed on Leroy's harnesses a few times because there were things I want. A toggle switch for on/off. Prime feature. Mountable relay socket instead of a mountable relay.
Now I would just order his and change what I want. It would still save considerable time...
If you haven't yet, I would augment or upside the cable going to the load center. It's marginally sized - like every other wire in a vehicle. They save a penny and weight, anywhere they can. .,
On the alternator, I would get junk yard cables or sometimes order new alternator cables, so I had...
Kind of like the last time they had a bigbesrthquake in the Midwest and the Mississippi River ran backwards.
If we have an earthquake of that magnitude now there will be a crazy b amount of people die.