Biggest tire under a stock suspension dart????

NO PHONE NUMBERS PLEASE this guys name is greg ,i bought my dana and some brackets to fix the same problem your having ...it mite be worth giving him a call....i havent installed mine yet so i cant tell you if it works or not but the brackets were around 150 bucks..he said i could run 275 60 15 with 8 in wheels at 4.5 offsett to the best i can remember...the stuff i got looks nice and professional ....