Ok so.
After 18 months of putting up with the noise, enough was enough.
I've finally upgraded to a Thermo fan and ditched the old wind farm running off my water pump. (Viscous fan)
For anyone that is interested it takes about an hour an a half but the only down side is, it costs about $320 retail or about $250 trade.
If you are going to do this I highly recommend using Davies Craig parts and not cheap Chinese eBay crap.
The parts I used were a 16" Davies Craig Thermo fan kit which retails for $230 on their website and comes with all the mounting accessories needed. Part # 0066 (flows over 2000 cfm)
And the Davies Craig mechanical thermal switch combo which is $90 on their website. Part # 0400. It comes with a switch that can be adjusted from 40c up to 100c. It can be done without the thermal switch kit but with it, it makes life sooooo much easier when it comes to having the fan come on at the right time.
It can be done very annoyingly with the radiator in the car but it is 1000000% easier if you take the radiator out of the car.
If anyone needs anymore info just PM me and I'll be glad to help.
Ps it is life changing.