Standard or hiflow thermostat for 02 gu td42t

[jff45]

This seems to be the oil to use according to many other users on the interwebs. I did drain my hub out first, but I still think I need to add more. Time will tell....
And thats the fan I used.....

I bought 3 x 18ml 10000cst and only initially used 2 but didn't feel any difference. I recently had my engine out to fix a coolant leak so I redrained the hub and put 50ml in. Seems a bit stiffer but it's not hot enough yet to really test.