Which one on that page?

Use the "TZ" code that can be found on a label on the bell housing near the starter.

But when I did a search for "tz1a4zceba ratio" this is the one thread that came up. And now it has more information if anyone repeats that search.

If everyone responded to long dead threads just to put the right answer in them in case someone else might search for it later, the board would be clogged with random threads that no one still active was involved with or cared about the answer. That's why it's always better to add to a current thread or start a new one, anything else just adds confusion.

 

That's why necro-bumping is considered a sin and an annoyance.