can someone please tell me what tooth speedo gear comes stock in our cars?

i need to adapt to my 2002 trans which has 8 teeth inside instead of 7,so i know i need a new speedo gear,i thought i needed a 20 tooth,but thats for t-birds with 3.27 gears,

so i just was wondering where i am starting at before i change, think i need a 19 tooth for 3.07 gears.

http://www.sccoa.com/faq/speedgr.html
19 tooth