[stickshift]

I went through this when I first bought my T. It came with two water pumps, both different brands and both needed parts to work. It made more sense for me to buy a new one from Snyders and be done with it. About $200 but well made, and I've never regretted the purchase. I could never wrap my head around the thermosiphoning idea because I live in the foothills and I have seen too many engines damaged by overheating. Better safe than sorry IMHO. My two cents.