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  #16  
Old 03-17-2011, 11:24 PM
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i see this has made the rounds and is posted in all the truck forums?
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  #17  
Old 10-11-2013, 06:35 AM
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I have a 2011 5 liter regular cab long bed with 3.31 gears that will be replaced with 3.73. I want to start a 28 ft. trailer . I picked up the tranny cooler, t.b.c. and the correct 7 plug trailer harness and fuses. My question is will my radiator be ok or do I need a bigger one? I've read in different articles that ford didn't really make different towing radiators. Is this true? I noticed in the post from N578MD that the 5 liter was not listed.
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  #18  
Old 10-11-2013, 07:57 AM
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welcome to the forum! Glad to see the search function turned up a thread you found useful.

As listed earlier in this thread, the ONLY upgraded radiator comes the MAX tow package and i don't think the MAX tow option was ever available with the 5.0L engine.

For what you are pulling, i doubt very much that you would need an upgrade. Cooling doesn't appear to become a problem until you start towing over 9k lbs or so, at least from what i've seen on this forum.

Just for the sake of asking, why the gearing change?
are you towing more than 8,000 lbs?
did you find the 3.31's inadequate?

just curious, as there are a ton of threads on here about gearing.

welcome to the forum!
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  #19  
Old 10-11-2013, 05:48 PM
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everyone tells me that the 3.31 is not the best for towing. With the trailer loaded its close to 8000#
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  #20  
Old 10-11-2013, 07:33 PM
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Originally Posted by slwry66 View Post
everyone tells me that the 3.31 is not the best for towing. With the trailer loaded its close to 8000#
Everyone who's telling you that hasn't driven a truck with the 6R80 transmission. Going from 3.31 to 3.73 will only gain ~12% more torque in any given gear. Do you really think 12% is worth the expense? I sure wouldn't.

If your engine gets too hot your truck will reduce power; if this happens frequently while towing then I would recommend getting the upgraded radiator. If not I wouldn't bother.
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  #21  
Old 10-11-2013, 07:42 PM
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Originally Posted by n578md View Post
TRAILER TOW PACKAGE (535)
• Side Mirrors, Manual Telescoping Trailer Tow w/Power Glass (includes
heat, memory, turn signal & puddle lamps & Chrome Skull Caps)[/COLOR][/SIZE]
Nobody else caught this?
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  #22  
Old 10-11-2013, 09:57 PM
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Originally Posted by slwry66 View Post
everyone tells me that the 3.31 is not the best for towing. With the trailer loaded its close to 8000#
if you haven't already made the change, i would at least try it and see how you feel about it.

According to Ford, your maximum towing is around 8000 lbs, depending on cab configuration.
http://www.fleet.ford.com/resources/...ng%20Guide.pdf

You will be close to the max recommended for your gearing, but changing to 3.73's only gets you another 1400 lbs or so ... as Tom said above, there's not a lot of gain from going from one gear set to the other.

i'd give it a try before you dump a grand into a gear change, you may not feel the need.

Just be realistic.... it is going to shift, and it is going to "feel" heavy. but let the trans do it's thing and use the skinny pedal to decide how fast you want to go, and how quickly you want to get up to speed. Changing to 3.73's isn't likely going to make it shift a whole lot less, to be honest.
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  #23  
Old 10-13-2013, 05:20 PM
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thanks for all the info guys. I'll try it like it is and then decide if I need a change.
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  #24  
Old 10-15-2013, 07:46 PM
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Originally Posted by meborder View Post
i don't think the MAX tow option was ever available with the 5.0L engine.
if you are talking about the current coyote 5.0L you can get the max tow with the 8 foot bed or if you get the heavy duty payload package you automatically get the max tow package.

At least that is how it has been on the build and price tool and as listed in the order guide.
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  #25  
Old 10-15-2013, 08:49 PM
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Originally Posted by seuadr View Post
if you are talking about the current coyote 5.0L you can get the max tow with the 8 foot bed or if you get the heavy duty payload package you automatically get the max tow package.

At least that is how it has been on the build and price tool and as listed in the order guide.
incorrect.

5.0 v8 and 8' box with 3.73's gets you either 3.7L v6 or 4x4 with e-locker

or

5.0 v8 and 8' box with 3.73 LS gets you Max Payload, but no Max tow. (but 10,000 lbs towing with the regular towing package)

under no configuration can Max tow be had with the 5.0 v8. Max tow is reserved exclusively for 6.2 v8 or ecoboost.

i don't have the order guide at my disposal, but on their towing capacities page:
2013 Ford F-150 | View Towing Specifications | Ford.com

you will not see the "*" indicating Max tow on any configuration available with the 5.0 v8.....
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  #26  
Old 10-16-2013, 12:46 PM
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Quote:
Originally Posted by meborder View Post
incorrect.

5.0 v8 and 8' box with 3.73's gets you either 3.7L v6 or 4x4 with e-locker

or

5.0 v8 and 8' box with 3.73 LS gets you Max Payload, but no Max tow. (but 10,000 lbs towing with the regular towing package)
i stand corrected - for some reason i was thinking that the max payload package automatically included the max tow package.
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  #27  
Old 10-16-2013, 05:42 PM
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Quote:
Originally Posted by seuadr View Post
i stand corrected - for some reason i was thinking that the max payload package automatically included the max tow package.
With the Ecoboost, it does.

oddly enough, though, Max Payload is not available with the 6.2 v8.

if one opts for the 3.73LS gears, you get:
max payload with 5.0 v8
max tow with 6.2 v8
max tow and max payload with ecoboost.

or, 3.7L v6 (for regular cab and extended cab short box, and crew cab 4x2)
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  #28  
Old 10-16-2013, 06:24 PM
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Quote:
Originally Posted by meborder View Post

or, 3.7L v6 (for regular cab and extended cab short box, and crew cab 4x2)
would be interesting to see a super cab long box max payload 3.7L

it is pretty much what i want, since i want the payload to haul a camper once in a while but 90% of the time will be hauling with little to nothing in the back.
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Old 10-16-2013, 06:24 PM
 
 
 
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