Hi Jakub,

It's a bit tricky to find the right one, but I got mine from a 2007 Toyota Matrix. I have the part numbers, which might make it easier to find a model that is available to you:

5th Gear:
33036-20060
33036-12120

5th Driven Gear:
33428-12060
33428-12100

If you search on toyodiy.com, you can find the region and models that use those parts. The swap is tough if you don't have the right tools, but a mechanic should be able to do it for you if you don't. It's not going to be cheap, either, because the whole transmission has to come out to get the end of the gearbox off.

Let me know if you still need help finding a source.

Cranky

Hello, I come from Poland. I found that you know alot about toyotas transmissions.
Can you help me to find a solution?

I've got 2004 Yaris TS (1.5). My transmission is probably c56 and its different than in (for example) UK. Im not sure that it is c56 but the gear ratios are same like on wikipedia.
1st 2nd 3rd 4th 5th Reverse Final
3.166 1.904 1.392 1.031 0.815 3.250 4.312

What i want to do is to swap 5th gear from 0.815 to 0.725 in order to achive more comfortable ride on high speeds.

Can you help me to find from which transmission i can get 0.725 gear?

I could eaven pay for your help.

Thanks!
Jakub