Ade, if you count the safty beers i drank as i flew into a furious rage after i discovered the issue, that estimation would be fairly accurate...

While you're beefing things up at the front, the chassis mount for the tie bar needs reinforcing on early Spyder chassis. Of course if you are using an r/j then you have probably sidestepped this problem already
Are you talking about the front lower "caster" arm? Yea I've already made significant changes to that, No rose joint as i'm trying to keep at least one end of every arm with some sort of bushing as I've had serious issues with fatigue on totally rose jointed rally car suspension before. Anyway, the body mount has been modified for a bushing and the whole area has been beefed up a bit, thanks for the heads up though