F150Camper

I presently own a 2007 F150 5.0L V8 3.73 axle ratio XLT 5.4 supercrew that we used to pull a horse trailer up to 5,000#. We now are pulling a Springdale 29' TT. It's GVWR is about 9750#, but we are probably at 7600 or so. Our dealer is arranging to get us a truck to look at Monday. It's a 2011 4x4 screw 145" wheelbase, 3.55 ratio limited - 7200# GVWR pkg. We questioned the ability to pull our TT when the catalog states 13,300 GCWR is the max. The sales manager assured us that if our XLT 5.4 pulled the 3.55 wouldn't have any problem. But going back over the numbers with loaded truck, people, dogs, gas, stuff and loaded TT with stuff, water, bikes, etc. I have my doubts. Something about tongue weight should be figured too. We originally considered a 2011 Eco Boost but pricey. I was told that there were only 4 of the 3.73 5.0L's available. We are new to pulling a large TT and now suspect that even our 5.4 XLT could be at it's limit. We don't want a warranty issue and I sometimes pull the trailer myself. We are absolutely at a loss as to how to figure this out and who to trust. Help! Thks.

PawPaw

For towing the 3.73 hand's down.

RES4CUE

You need to look at the payload more so than the gears. Yes 3.73 is a better pulling gear but you need to tell your dealer to show you trucks with heavy duty towing package with max payload package. this will give you a few hundred more pounds payload.

tounge weight should be 10 to 15% of the trailer weight, this goes against your payload.

I know you don't want to hear this but you may be better off with a 250 if really worried about warranty.

Good old Bill

Am totally confused, thought the 5.0L was last used in the mid nineties.

Talking ratio's, the higher ratio will offer better out of the hole performance, cruising on level ground, mileage will take the hit.

Dtm030

You could go with either really. The new 6 speed auto's give the trucks a real low gearing so there isn't much difference with the two. The price difference with the Ecoboost is only $750. I like the way it tows as it reaches peak torque nice and early in the rev-range so I would suggest the Ecoboost. I love towing with mine.

The 3.73 will be the best IMO for towing a heavy load like that.

mcfarmall

3.73 for me.

F150Camper

Thanks for all the help. Dealership can't seem to meet my needs. Forgetting the Eco Boost for pulling my big trailer. Going with a F250.
Better safe than sorry. Gail

EdgeR6

Te only reason why im still with f150 is because I dont have a trailer that Warrents a 250 or such. I will eventually get a traviler trailer that the f150 can tow but after I have the trailer. Then I will look at getting the bigger trucks. Im not a fan of the eco boost either dont care what the numbers say. V8 is the only way for me.

Two 5.0's

I'd say 3:73's for anything above 5,000lb trailer weight. After reading your post more in detail i'd go with at least an F250 instead of a 1/2 ton truck. I have two trailers i pull with my truck but they don't weight as much as what your pulling.

Good old Bill

I asked earlier but had no replies, is the 5.0L the same engine as before or is it another engine with same displacement?