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Replacing the gearbox
Posted: Tue Jan 15, 2019 5:38 pm
by Bazza
Just read about there being 2 different gearboxes in the manual fto's. I am going to be fully replacing mine but the actual gearboxes are hard to come by, only found the one so far that isn't trashed, does the replacement have to be the same gearbox number F5M421 or F5M422, or if im replacing it completely does it not matter? If it does is a conversion simple enough to do, or how much extra time would it take a mechanic to do?
Thanks
Re: Replacing the gearbox
Posted: Tue Jan 15, 2019 8:01 pm
by bjk
Pretty sure F5M422 is the only manual box, based on the guide Stu put together
http://www.ftoaustralia.com/v3/viewtopic.php?t=27695
Re: Replacing the gearbox
Posted: Thu Jan 17, 2019 9:34 pm
by glebo
Not necessarly,
you can use the mirage 1.5 gearbox and that simply works fine onto the 6a12. That is another option for you.
Only downside is that the mirage has a slightly longer gear ratio.
3.7 for the mirage vs 4.3 for the fto.
If you have more coin.... then upgrading to the 4.6-4.6 gear ratio and lsd would work wonders.
Re: Replacing the gearbox
Posted: Fri Jan 18, 2019 2:58 am
by spetz
In my opinion the FTO gearbox already has way too long of gears/FD.
I use a CJ4A (1.6 MIVEC) gearbox and it really transforms the car.
Re: Replacing the gearbox
Posted: Fri Jan 18, 2019 11:33 am
by Bennoz
Bazza wrote: ↑Tue Jan 15, 2019 5:38 pm
Just read about there being 2 different gearboxes in the manual fto's. I am going to be fully replacing mine but the actual gearboxes are hard to come by, only found the one so far that isn't trashed, does the replacement have to be the same gearbox number F5M421 or F5M422, or if im replacing it completely does it not matter? If it does is a conversion simple enough to do, or how much extra time would it take a mechanic to do?
Thanks
Even if you get a ragged out one, it's not hard to put a bearing reco kit though it.
Conversion is easy enough. I did one over of the course of a weekend at a half arsed pace.
DIY guide is here:
https://www.ftoaustralia.com/downloads/ ... on_DIY.pdf