Join Date: Jul 2006
Location: Hansen, Idaho, , USA
There is one mentioned on this site, and it's now in my LTD, but there is one thing, the 1200's have a small hole in them so that fluid can by pass the thermostat. My understanding is that its job is to prevent air lock. There was some debate about that thermostat comapired to stock as well, the auto has a smaller hole then the 1200 but the auto will open more then the 1200's will. Seems like it's all a big wash, except for the price.
Mind you, I know everything about nothing and nothing about everything.