I tried them both today. The 18 feels like a dog compared to the old school 6 spd. Select shifting down a hill is poor as well you need to drop about 4 gears before it does anything. I sure can't feel the extra 10 ponies. It was also a dog putting my foot on the floor at 100kmh. My old 15 will eat it for breakfast. I was going to order a 18 XLT se sport 5.0 373.I'm now considering a leftover 17 lariat 501a 5.0 373 with town mirrors and twin panel moon roof for about the same price. I think ford screwed the pooch on this.
Another thing is you can hardly hear the sweet sounding V8 on the 18,it's way quieter.

 

Appreciate the feedback. Very disappointing to hear.

 

I honestly think my 18 is much improved over the 15 I had. The 10 speed is smooth as glass. I don't race so I have all the power I'll ever need with the 3.5EB. The ride and handling are leaps and bounds better over the 15. Many others have stated this as well.

 

I felt the opposite, 5 with 10spd felt way better than 5 with 6spd, 3.55 on the ones i drove, maybe its a weight thing, same trim level? but yeah new 18s are quiet. Yes the 10spd has 3 overdrive gears so you would have to shift down more.

 

Perhaps compare a 18 5.0 with the 3.31 gears.

This combination is closer match in gear reduction to your 5.0 3.73. The new ten speed with 3.73 might be just too low gearing... Great for acceleration from a dead stop up to about 30km/h... After that there is no advantage...


I have a 2015 Lariat SCREW 5.0 3.73... Its fast... I'm waiting for my second truck to arrive, 2018 Lariat SCREW 3.5EB 3.31...

I test driven the new 3.5EB with the 3.31 and 3.55.... The 3.31 felt quicker to me vs the 3.55....and crazy faster than my 5.0!

 

Off topic...sent to the dead letter office.

 

The taller the rearend ratio (the higher the number) the quicker it should be. In old school hotrodding, you always picked up some speed by switching out the gears for taller ones.

 

What does that have to do with the original post when the OP never asked about the EcoBoost?

 

Brand, my bad...after I reread the original post, I somehow got way left-of-center on the topic Please disregard.

 

higher numbers is shorter gears. lower is taller.