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3.90 and W58 Speedo drive gear question?

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29K views 26 replies 13 participants last post by  RedP85  
If you are using W55/7/8 Manual

4.300 diff is 35/10
4.100 diff is 33/10
3.909 diff is 35/11 (you can use 31/10)
3.727 diff is 33/11
3.583 diff is 32/11


If you are using Auto or W50

4.300 diff is 21/6
4.100 diff is 20/6
3.909 diff is 19/6
3.727 diff is 18/6
3.583 diff is 17/6 (god forbid you are using this though)
 
Carlos Brown said:
4.30 gear is 10/35
3.90 gear is 10/31
Interesting, when I asked my local Toyota parts place what teeth I could get, they only said 32, 33 and 34 teeth.

Do you have the part numbers for the 31 and 35 teeth? Do they do a 36 tooth gear?

FYI

4.10 gear is 10/33
3.73 gear is 11/33

You can also use 11/35 for a 3.9 gearset, but it will read 0.5% out compared to 10/31