5 Spd to 6 Spd Conversion DIY - Toyota Yaris Forums

Bluevitz-rs · 01-25-2014, 11:55 AM

The gears as far as I know are not interchangeable. 5th gear in the 6 spd only goes about 145-150km/h and has the engine turning around 4100 rpm at 100km/h. Not ideal for every day use.

CrankyOldMan · 01-25-2014, 02:20 PM

Quote:

Originally Posted by Bluevitz-rs

The gears as far as I know are not interchangeable. 5th gear in the 6 spd only goes about 145-150km/h and has the engine turning around 4100 rpm at 100km/h. Not ideal for every day use.

In theory the gears from 3rd to 5th could be interchanged if the shafts have the right splines, but 6th gear would require some investigation. If you need to drop the freeway RPMs in 5th gear, get a 5th gear set from an '03 Matrix C59 gearbox. Most of the 5-speed gearboxes have a 0.815:1 5th gear, but both the 5- and 6-speed gearboxes from that gen matrix have a 0.725:1 5th/6th gear respectively.

At this point, the only way to know for sure with the other gears is to get the parts and see if they fit.

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01-25-2014, 11:55 AM	#1
Bluevitz-rs 1NZ-6spd View User's Garage Drives: '05 6-Spd Vitz RS Join Date: Oct 2008 Location: Oshawa, Ontario, Canada Posts: 2,967	The gears as far as I know are not interchangeable. 5th gear in the 6 spd only goes about 145-150km/h and has the engine turning around 4100 rpm at 100km/h. Not ideal for every day use.