Recent content by Daniel Nawrot

Is the 3.31 ( rated to pull 11,000lbs.) strong enough (good) to pull 8,000 lbs. up of 6 &7% inclines that are 2+ miles long ?

I need to know real experience if an F150 (3.5 Echo boost) 3.31 rear axle is strong enough to pull 8,000lbs up 6 & 7 % inclines that are several miles long, OR do I need the 3.55 rear axle? Thanks, Daniel