Will changing to 3.23 ,3.45 or 3.7 diff gears affect gearbox shift points ?

[vsl67]

Will changing to 3.23 ,3.45 or 3.7 diff gears affect gearbox shift points or cause any other gearbox problems in a VS with 3.07 ratio?

[torana355]

I want to know the same thing for a VZ SV6 with the 5 speed box.

[Decicrate]

Long story short, yes it will affect your shift points to some degree.

[delcowizzid]

if you fit a speedo corrector to fix the speedo being out and fit it before the ecu not after its will all shift as normal

[vsl67]

Does the Jay car corrector kit go before the ECU? So A diff ratio change has more or less the same effect of the TPS being out when you change to a larger TB as it throws the shift points out due to a different speed to the throttle position ?

[hq-racing]

what is you car doing?
does this just fix the speedo accuracey?