I've read all the info I can on the thermostat housing leaking. I've come to the pretty easy conclusion that it's either the thermostat housing being cracked, or the O-Rings inside the thermostat housing being old and brittle that's causing the leak.
Which problem is more common? Is it worth it to just buy a new housing and a box of #203 O rings and replace them both?
Also, where did you buy your housing from? I've always used rockauto.com, and they've got it for $14 but if you recommend elsewhere, I'd appreciate the advice.
Thanks in advance.