Hi fellas. Just rebooting an old thread. Was definitely thinking the 3.4 gearing would be the go for my 07 Gts but after hearing about controlling wheelspin mods 1st may be the best option and go from there. Anyone on here with a slight modded 6 litre or similar gone the ratio of 3.4 or 3.7? Be good to hear thoughts on this. I think my car has the std hsv auto ratio of 3.27 but hopefully confirm that later this week. Cheers
