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Old 07-21-2010, 10:14 PM   #15
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2012 25' FB Eddie Bauer
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Hey guys:

Quick F150 question for you.

I am also now looking at the 2010 F150 Supercrew with the Max tow package of 11,200 and the 3.73 rear end. The dealer found several with the lighter tow package - rated 9600 I think - and 3.55 rear. But it sounds like I could really use the heavier tow package and the 3.73 if I am going to tow the '05 28' international CCD I am searching for. Looking at fully loaded with 4x4.

I drove the awesome monster of the F250 4wd CC Diesel all day yesterday - and it seems to be too tall and too much truck for me.

Am I doing the right thing in the F150? Is that a good truck for mountains? And will the 3.73 rear end help me in mountain pulling that much? If so, how?

Tons of newbie questions - but want to do it right. This is my first Airstream, first TV and best chance to do it right

Thanks in advance for your input - Pinky
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Old 07-21-2010, 11:27 PM   #16
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pinky

definitely go for the 3.73 rear IF u go 150.

and while the 20 inch rims LOOK cool, go for 17s or 18s for better towing.

that's a high rev'n gasser and it will pull fine.

performance will fall off some at ELEVATION, combined with grade.

but that only means 55 mph going UP hill...

the primary issue is PAYLOAD.

PEOPLE/dogs, tongue, hitch, lpgas, GEAR, junk, a shell/liner and STUFF in the truck all use up payload.

depending on model of 150 that figure will range from 1400 lbs UPto ~2,000.

most folks end up with 1/2 trucks that have ~1500 lbs payload.
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the 250 or 350 takes that figure way UP (2400-4000+ lbs)...

so figure out HOW MUCH will be carried and add in the hitch, A frame weight and so on...

IF u r the sorta camper that can FILL a long bed and plan LONG trips, the 250/350 becomes a better mule.
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it's no fun to buy a new truck only to find out you gotta put your camping NEEDS on a diet to fit the capacities...

cheers
2air'
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Old 07-22-2010, 12:16 AM   #17
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Hey 2Air:

You are why I'm looking at trucks now, and not SUVs

The payload on the F150 Platinum is 1900 - and I guess I'm confused a bit.

I want to take max 3 adults, a dog, our gear and maybe a vespa scooter in the bed of the truck from time to time - otherwise it's just me and 3 dogs.

Isn't 1900 additional pounds on top of what the capacity of the trailer holds enough? How much extra weight do I really need to allow for?
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Old 07-22-2010, 12:19 AM   #18
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Also guess I need to factor in 2 linked 2000 generators and the weight of a hitch - which reminds me, what hitch would you get for the F150 i'm looking at and what might that and the 2 genny's weigh?
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Old 07-22-2010, 12:40 AM   #19
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the h2000s are ~50 lbs each (100#)

3 adults are ~350-500 lbs

3 dogs are ~100-150 lbs

1 vespa is ~250 lbs

gear...i got no idea.

a 'hitch apparatus' is 100-250 lbs (i use this... http://www.airforums.com/forums/f464...ide-57179.html)

((but u will have to review them all and decide on a hitch))

now whatz the tongue weight on a modern 28 footer?

looks like 900-1000 lbs for the TONGUE per a/s factory info.
_________

your 05 may be different, gotta measure the tongue WITH lp gas to know.

WAIT, have u purchased a stream yet ???

don't commit to a tv UNTIL u've nailed down the stream.
_________

so 900+200 for a hitch = 1,100 lbs

add the scooter and the total goes to 1,350 lbs.

that leaves 550 lbs for people, dogs, gensets, gear AND cheetos ...
_________

1900 lbs is a VERY GENEROUS payload which is why the f150 is so appealing...

but IF you got 2000 lbs of stuff, well...?





cheers
2air'
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Old 07-22-2010, 08:13 AM   #20
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Now this is why I joined this group…

As per the conversation, in this thread, on Tow Vehicles (TV), I have a new (2010) Ford F150 XLT 6.5’ box; 4X4; SuperCrew with the 4.6 litre V8; 6-speed automatic; 3.55 Rear-end...whew, and factory Trailer Tow package. The GVWR rating is 6,800 lbs with P275/65R18 and Ford states a towing capacity of 7,700 lbs.

I think Ford updates the GVWR and towing specs when you take the optional Light Truck (LT) tires to 7,100 lbs and 8,000 lbs towing.

I, like ‘mellomike’ and others, am going to upgrade the rubber to LT, as soon as I can.

With these limits I’m looking at 1980-1989 models, which are far lighter than the later model travel trailers. The 27’-31’ units weigh in around 4,230-5,800 lbs (Dry) and a hitch weight of 490-700 lbs.

Am I correct in my thinking?

Looking forward to everyone's response.
Chris
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Old 07-22-2010, 10:01 AM   #21
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I have to be quite honest. I wasn't all too confident the first time I tried to tow up the daunting Camp Verde Overpass here in Arizona over the 4th of July weekend. My F150 with the 3.55RE did outstanding pulling my 6,000lb Sovereign. I don't think I dropped below 55mph.

The only thing I'm going to do to my truck is upgrade the Michelin P255/65R17s with Michelin LT285/70R17s. I only have about 4,500 miles on these passenger tires, so I should be able to get a good price for them on CL. I might put another leaf in the rear to stiffen the suspension but that's far from certain.
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Old 07-22-2010, 10:12 AM   #22
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good info chris...

find the gvCwr and payload.

MEASURE the curb weight (read why in da link below)

http://www.airforums.com/forums/f463...tml#post873363

no question tires affect rating, especially as the load increases,

but in your truck the rear end is also part of the issue.

still your size/weight/era thinking is rational.
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(if planning a tire UPgrade keep to the same outer diameter/size)

mike>>>going from 255/65 to a 285/70 is a nearly 9% INCREASE in rolling size...

this REALLY cuts into hp/torque at the ground and will have a NEGATIVE effect on all towing parameters.

cheers
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Old 07-22-2010, 10:20 AM   #23
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Hi 2Air,
Do you think the negative towing impact using those tires will be substantial? I'm looking to improve the profile of my F150. The P255s are too small for my liking. Perhaps LT265s?
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Old 07-22-2010, 10:31 AM   #24
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yes !

9% is a huge size change. for a tire package.

the heavier, larger tires will be VERY SLOW off the line...

AND affect the oem brakes negatively as will mpg and the oem suspension.

the winder, taller tire will impact handling and grip, also negatively.

IF u don't wanna FEEL the negatives, keep the size increase to 3% or less.

i get the "these look small" view, because they DO look small...

especially since the fashion designer's push to put larger wheels on everything has taken over.
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IF u wanna get all the power from that high rev'n mota to the ground....

AND use much larger wheels/tires, the rear end needs to be changed (3.7 or 4.1)...

for comfortable handling u might need to change the shocks too...
__________

the designer shift to 20s or now 22s means properly sized tires/wheels in 17 or 18...

make our trucks look like they are on roller skates...

((add wheel opening moldings/wheel well flares....

these will SHRINK the oem fender cutouts a bit

and if BLACK or body color, help with the appearance of the tire/well gap...

sorta like a short fat guy wearing vertical stripes to look thinna' ))



cheers
2air'
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Old 07-22-2010, 10:44 AM   #25
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Quote:
Originally Posted by 2airishuman View Post
IF u don't wanna FEEL the negatives, keep the size increase to 3% or less.
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IF u wanna get all the power from that high rev'n mota to the ground....

AND use much larger wheels/tires, the rear end needs to be changed (3.7 or 4.1)...

for comfortable handling u might need to change the shocks too...
__________
cheers
2air'

Thanks 2Air for the response.

So what size increase would result in a 3% increase? LT265s?

I've thought about a rear end change to a 3.73. What would something like that cost? I've never upgraded something like that before.
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Old 07-22-2010, 11:01 AM   #26
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mike...

there are online TIRE SIZE calculators in cyber space.

u can plug into them and play with sizing.

or go to the tire rack website and insert YOUR truck specs...

then opt for "plus 1 sizing" options...

the RIMS on your vehicle have specific tire size limitations (like width) and load ratings ...

so u need to KNOW the wheel specs and widths they will accept for mounting.
_________

every tweak cost bucks, some more than others.

an 18 inch rim with plus 1 sizing tires is a better upgrade from a handling perspective...

but will DOUBLE the costs (gotta buy wheels)

changing out the rear end is parts and labor, with labor being significant,

figure 800-1000$ for a qualified SHOP and oem parts.

u CAN do that on a new truck, but is it wise?

depends on the long term use and how long u keep it.

the 3.5 rear ends are GREAT for increasing fuel economy

in trucks that are only occasionally used for towing/hauling loads...

when buying, it pays to KNOW your needs

and be alert to the specs offered on the dealer lot vs what IS available on a given truck model.

it always costs more $$ to REdo a truck, that to let the maker do it right on the assembly line.

cheers
2air'
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Old 07-22-2010, 11:17 AM   #27
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Good points, 2Air.

Upgrading the rear really isn't an option. The truck is brand new and we don't tow a lot, maybe 6-8 times a year. Now if we were fulltimers that would be another story. We do get great gas mileage towing with the 3.55 rear. We got 16mpg towing our Sovereign over the 4th.

I really don't want to impact towing that much so I'll probably stay with the 255s. The Michelin LT255/65R17 LTX M/S2 provides the same load at 2205lbs and a 9 PSI increase to 44PSI max. This should be more than enough for my needs. Incidentially, the 265s provide the same specs only they are slightly larger.
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Old 07-22-2010, 11:28 AM   #28
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add cuffs to yer trowser legs and pull up those socks ...

f150 fender flares - Google Search

lots of examples of flares and the visual impacts.

again even THIS tweak is $$.

good flares are 6-700$ or more UNpainted...

so it can run 14-1500$ to add these to a new truck.

when ordered ON the truck, ford charges 3-500 $ tops.
_______

another FUNCTIONal and visual improvement is mud flaps...

these are made RIGHT HERE in the land of ahs...

they are strong, easy to install, look great, protect the rocker panels AND stream....

and NOT very expensive.

http://www.huskyliners.com/Custom-Molded-Mud-Guards

the mich' tires u mention are readily available NOW at costco...



cheers
2air'
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