I would like to change the oil in my diff but would like to do it right.
I checked on the quaife website and it says the below
"For a Quaife ATB differential, running in a rear axle, we advise you use a hypoid 90 or 75W90"
can anyone recommend some decent stuff as not changed it before. Cars used for occasional track days and fast road.
The change itself?
there is a nut with a square drive in it about halfway up the diff casing, so as i understand it, I take that out, suck old with a syringe thingy, and then fill up with apx a litre of new stuff till it just starts to come out of the filler hole.