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3rd Gen Ram Tech2002-2008 Rams: This section is for TECHNICAL discussions only, that involve the 2002 through 2008 Rams Rams. For any non-tech discussions, please direct your attention to the "General discussion/NON-tech" sub sections.
It's up to you. I saw no problem investing $32 for the Jet when I got it to protect the engine in my $32,000 truck. Others posted on here they thought it was highway robbery and would NEVER pay over $10 for a thermostat...
the jet is stainless steel and is a 2 stage design, which means its like the stock one and will allow the coolant to warm up faster; which is good. I havent heard of anyone throwing codes with this stat.
the mr gasket isnt a 2 stage design, also I have seen people who use this one throw codes for being too cold. someget codes, some dont..another stat to consider is a stant. I havent heard of anyone throwing codes with this stat, and it is about the same price as the mr.gasket; only thing is you may have to trim it down a hair to fit your truck.