Yaris box in an Aygo

Cjdandrews · **Posted:** Mon Aug 12, 2019 8:16 am

Will a Yaris gearbox bolt straight into an Aygo?

Want the change due to the higher final drive.

wee mac · **Posted:** Tue Aug 13, 2019 6:44 am

Shouldn't have an issue with the mating of the bell housing , just need to confirm if it would be a simple gear box mount swap and job done ? And will need to check of the driveshafts for the yaris box. Does the diff sit in the correct place for the drive shaft geometry?

A few questions to answer, you would be the first person to attempt it? Worth a shot if you have the spare time and the money to take a punt?

PetrolDave · **Posted:** Tue Aug 13, 2019 8:41 am

If the final drive ratio is different won't the speedo calibration be wrong?

Stonesie · **Posted:** Tue Aug 13, 2019 9:50 pm

The speedo reads the RPM of the output/wheels so it shouldn't make a difference. Looking at google pictures of Aygo gearboxes there is no speed sensor on the diff housing so they probably use the ABS sensors to detect vehicle speed.

Roc · **Posted:** Tue Aug 13, 2019 9:57 pm

Yes ABS sensors provide the speed.

Cjdandrews · **Posted:** Tue Aug 13, 2019 10:32 pm

I've removed the abs fuse and the speedo still works. Speedo being different isn't an issue. I'll correct it with tipex or something. Looks like I'll be talking a punt.

wee mac · **Posted:** Wed Aug 14, 2019 6:34 am

I would be very interested to see how this works. Sounds potentially a very good modification, is the Yaris a 6speed?

There was speculation in the past of the same idea with the Toyota IQ gearboxes

PetrolDave · **Posted:** Wed Aug 14, 2019 8:43 am

wee mac wrote:

I would be very interested to see how this works. Sounds potentially a very good modification, is the Yaris a 6speed?

There was speculation in the past of the same idea with the Toyota IQ gearboxes

Now a 6 speed box is something I would be interested in ...

Cjdandrews · **Posted:** Wed Aug 14, 2019 1:46 pm

No its a 5 speed box. I road rally the car so I'm just looking at it for lowering the gearing

Cjdandrews · **Posted:** Fri Nov 15, 2019 7:40 pm

Not straight in but with a bit of adjustment you can get it in.

Makes a hell of a difference now it's in. 50ish top of second and 70ish at top of 3rd

Citroen C1, Peugeot 107, 108 & Toyota Aygo Owners Club. (Discount code for CityBugStore: C1OC)

Yaris box in an Aygo

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