During Classic Adelaide 2015 I started to hear load chattering/vibrations from the rear of the car when cornering at speed - mainly right hand turns. Having checked the rear end for loose nuts, bolts, heim joints etc I was at a bit of a loss. Having spoke to Danny M on the phone he suggested that it was most likely the Kaaz LSD chattering away due to over worked oil. He recommended an oil to me but what I wrote on my hand wore off by the time I finished work.
Kaaz recommend a mineral oil of GL5 spec or higher (their oil is 80W90 with friction modifiers). I am thinking I need something more like a 75W140?
Recommendations?? Danny?
Also, I currently have a 4.88 in the hilux diff that permits a top speed of 219km/h. Never got close to that yet so thinking of going for a 5.1 (if available). Are they significantly weaker?