breaking rear ?s

With BF Goodrich Comp TA G-force drag radials and 3.73 gears will I be saying good bye to my rear soon or should I be fine?

EDIT: the tires are 285/30/18

With an A4 you can run pretty hard and fast with sticky tires without a problem.
I run 3.42s, 3800stall, and ET streets. Low to mid 12s @ 108-111mph and I go to the track a LOT:D

If your rear is set up good enough you can put 4.10s stage 3 heads cam nitrous and slicks without it breaking I have been running like that for a year and no problems at all

i agree, u should be fine with it being a A4. i might suggest welding your axle tubes as a easy protective measure