its all in the rear end gears

a 3:55 rear would be better for mountains, worse for gas mileage

my 95 f150 with the 300 and 3:55 rear end still had problems in the mountains

if I got stuck behind a truck doing 35 mph...i would be lucky to pass it and maybe get

it to 55 mph

if i could keep it at 70 mph it could hold its own all the way up the mountain

Mark