Well I dont know what it can be I've been messing with all night still doing it?????

The only things i have on the car diff to kit is the alloy rear hubs thats it.
I have incl some pics for you all to look at see if you can spot anything wrong.
The car is all kit & has 1deg Camber all round. All wishbones are nuce free all shocks measure the same lenght even doen to the shock collars etc.
I've tightned the rear diff thight & then backed it off by half turn & the slipper is 13mm from the slipper plate to back of the nut as this is the same as my mate has on his car that was Chris Longs old car he said his is perfect even with 5.5t motor in.
Thanks
Does anyone know photos arent showing up??? there something wrong with the Oople website still