At the monment I'm converting my 1.2 corsa to a 1.6 16v with TB, but the gearbox issue is confusing me.
I always assumed it would be an F10 dont know why, but it came out and its a F13. Then checking the numbers it seem to be a close ration one too.
Would vauxhall really put a close ratio box on a 1.2 8v as it never felt that way.
So the numbers I can see are 08553 C374
Do i stick with this box I know its not to old hasnt done to many miles or go for an unknown F15
Sorry for the essay