My KE15 is a 4.22 I belive in the smaller Jap diff with 6inch centre.

 

I also have a 4.4 gear for it from a KE18 wagon I belove.

 

TRD did make gear for these diffs to ranging from 3.X right down toa 5.1 that I have seen so not really street gears..LOL

 

Cameron

KE70 has 4.3 for auto and 4.1 for manual. AE71 has 4.1 for auto and 3.9 for manual.

 

But at the end of the day who knows what has been swapped over the years. Its unlikely any of the different ratios are from factory variations, most likely people swapping things after the fact when something breaks.