96 geo 1.0L manual trans gear swap

[Alxsmt]

here is the deal, Im having my trans rebuilt. I would like to swap to a taller 5th gear. from what I have read I can use the 1.3L manual trans 5th. do I have more options? Is this a direct swap? how much better mpg are you guys getting? I get 47-53mpg 100% stock.



thanks,
Alex

[dcb]

IIRC, the gear ratios are the same on the 1.0 and the 1.3, including 5th, but the final drive is different, so you want to swap the whole transmission (or have a custom 5th made).

Metro taller transmission swap thread: +5% efficiency gain (taller final drive)

[Alxsmt]

I swear I read something about just 5th gear. Maybe what I read was the taller 5th with the other differential. I don't really want all the gears taller. Guess ill have em build it stock. Thanks!

[Arragonis]

If it costs the same I would go with all gears longer, why have a larger gap between 4th and 5th when all of them could be spread more evenly.

[Alxsmt]

Well I don't think I would do good with that. I think my foot would be in the gas more with the conditions I drive it