After some info if anyone has it, Needed to get the Fixed Pivot pin out, and yes used loads of heat etc etc, but upshot was that the pivot bolt was knackered in the process of removing it, so much that there is none of it left fit to measure, I am after the diameter and pitch of the pivot pin, we managed to get it out without to much damage to the threads on the gearbox, but I want to chase the threads out, however cant find on line anywhere the size, local dealer were no help either. Anyone know?