Alot of that information about smaller pinions is misleading. Yep, many have less teeth on the pinion....but just how many teeth do you think are actually in contact with the ring as it rotates?
Might want to read this site....it's Toyota specific.
571 gear strength
Zuk is probably one of the most knowledgeable and experienced Toyota third member gear installers in the USA.
IME, the ratio isn't as much of a problem as proper set up.
Sean
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