This is the special tool I welded together. Normally the bit on the bottom would be round, but I was trying to think outside of the box and ended up with a box - a square... ;) I welded two metal tubes for the bolts offset onto the square. The required torque is something ridiculous - way above what a torque wrench can measure. I think my torque wrench went to 220Nm, The required torque is something like 325Nm from memory. I did not use my working torque wrench for that (to avoid killing it), b