I'd be interested to know this also. The Haynes manual for non-Cosworth models describes the following:

Lower arm-to-hub carrier balljoint nut: 65 to 85NM/48 to 63lbft.

Lower arm inner pivot bolt: Stage 1 ("clamping" torque) 45Nm/33lbft, Loosen fully, Stage 2 ("snug" torque) 15Nm/11lbft, Stage 3 Tighten through a further 90deg.

Can anybody confirm as to whether this correlates to Cosworth models?

Thanks,

Alex