[Tatey]

I'm not sure which threads you are referring to, but there shouldn't be any problems with the steering rack extensions. Do you have any links to them?

However I do know there was an issue with the driveshafts being too long with the original wishbones, meaning they had to be shorted. But shortly after the release of the book, Chris released a revised edition with longer rear wishbones to solve the problem, meaning no modifications needed to be made.

EDIT: I think I might be wrong about what I said about the driveshafts, I think it was the steering rack which had the issues, but Chris made the wishbones longer to ensure that everything fit without modifications,