Are BFG AT's directional tires?

not directional.
There are a lot of theories on how to rotate radials vs bias ply tires.
most date to early radials having separation issues, which have largely been designed out.

When I went through Michelin tire school in 97-98 they specifically said they recommended not cross rotating because of decreased ride quality initially (until the crown is worn off the tire) but that cross rotated tires would last longer.
 
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