Homer wrote:No mate but you'll probably feel a little bit of power loss...although there will still be plenty. Also probably some fuel economy too, but those are the trade off's for 33's
Easy to add more power though The only time you would really need the new diffs (if loss of power and economy don't bother you) is in low range decending a steep hill where your relying on crawling. I have 32"s and the difference is quite noticable when decending. Have to use the break more than I should.