[Tbos]

Originally Posted by Desert185

Two miles an hour faster at an indicated 65 MPH. Not significant, really. If you had a 3.55 rear end, you would essentially have a 3.40 with the 265/70-18.



http://www.discounttire.com/dtcs/infoTireMath.do

I had not thought about the effective change in rear end ratio. Since that ratio is part of the equation the OEM uses to determine towing/load capacity it can negatively impact that too. Thanks.