whats up i bought the guages off of glowshift.com. It didnt come with the oil sandwhich adapter and the water sender adapter. Here are the links to the adapters.

http://www.glowshift.com/oilsandwichadapters.html
http://www.glowshift.com/wateradapters.html

Now my question is, I have a 2007 Scion TC and I was wondering which ones would I need to fit. either the 3/4, 18mm or the 20mm and the different sizes for the water one. not sure what the specs are on the car for this but if known id appreciate it very much. Thanks again

 

3/4 for the Oil Sandwich adapter