I will be picking up my new 3500 srw crew cab dmax tommorrow. It has the ugly 245 tires on it. Want to lift front end and upgrade tires but I tow around 9000 lbs and was told the allision will not shift right with tires at 285 or larger. Is there a programmer that will change this or do I stick with 265. Thanks oh I will also be changing out the shocks hopefully to ranchos. thanks for your help