I have just done a fair amount of work to my truck, mostly up keep that it had fallen behind on as the truck is fairly new to me. I have heard about removing one of the thermostats so you do not end up with one working and one not, which was my case. Do you just leave one out? or buy new housing or what??

 

if you have 2 T-Stat i would replace the both if you want switch over one you have to do the housing also on duel set up i wouldn't leave one out you wouldn't have no way control coolant temps

 

I have already replaseed both thermostats has just wondering what was needed to change to one and why they put two in if will cool with one

 

they put 2 in so have more coolant flow they claim