Here's the result, the click is gone. Socket size 32mm, torqued it to 180Nm and used some medium thread lock. Put some copper grease into a syringe and squeezed it onto splines at the back of the hub after pushing the axles out a little. Much easier than I expected, didn't even have to use a blow torch I used 4 washers at each side (3 new and 1 old) and as they aren't flat I did a little research and decided the best way to set them up is like this: AXLE ))(( NUT . I did read that 3 washers could make nut to low so 4 was just perfect.