I've seen people who have 180 degree Tstats in their Durango 4.7s, and heard that both Stant and Robert Shaw make one, but they seem to be impossible to find. I even called Stant directly, they only have the 195 deg. Tstat, and Robert Shaw is impossible to contact. Even the stock 195 is hard to find in stock at local part shops and even then they are $22-27(!). Is there some sort of shortage? Where the heck do I get a 180, or do they not exist?