Are 4.56 gears to low for 700r4 and 33\" tires? I'm thinking everyone is sick of this question but here it goes. Currently I have 3.73's 31" tires no lift. I do fine on level ground but when I tow my boat in the mountians I have a hard time doing the speed limit, I want to avoid dropping into 2nd on the highway. I want to go up to 33" tires. I know I will need lower gears. If I go to 4.11 and 33's I will gain 100 rpm, not alot. If I go to 4.56 I gain about 400 rpm in 3rd while towing, too much? I do need more power. The best senario may have been 4.56 and 35's, I gain 200 rpm but there is no way my rig will fit in the garage with 6" lift and 35" tires, or even just 35's and 4" lift. Bottom line: 4.11 and 33's or 4.56 and 33's and I do live at 5000 feet so that comes into play also. The gear shop guys were reluctant to take my money for just moving to one gear step lower, go figure. Thanks.