I had a 8274 on my old 90 with an ARB bumper
Attachment 91124
How you do it is use 3.5  v8 head bolts which are the same thread as the Warn winch mount ones but longer and then put a spacer block between the bumper and winch to space the winch back about 5 to 10cm. Which means it will clear the bar above which is normally the problem 
The winch sits back a bit but still does not hit the grill and fits nicely