would changing my diff gears cause my speddo to be out and how can i fix this?
It can be fixed in the memcal if you know someone who can do memcal tunes.It just needs the speed sensor ratio changed to suit the new diff ratio as both the auto trans (if auto)and the speedo both use the speed sensor signal to operate...
Jaycar speedo corrector kit!!
Speedo Corrector MkII Kit - Jaycar Electronics
My Senator 355 Stroker
http://forums.justcommodores.com.au/...5-stroker.html
thanks guys will look into it cheers