Hello. Was curious what I should be expecting with the mud tires for a top speed? I'm not real worried about it but I can only go about 75kmh tops! Another guy in town has the same rig as I do (95 mits) and I have come up behind him on highway in my f150 and he's doin 60MPH which is like 95kmh. Will tire size make this much difference?? I don't even really need 5th gear seems like cause can't get goin fast enough for it. Thanks
