brulaz

3.73 is a requirement for the HD Payload package.
Dunno about MaxTow, especially with 2015s everything is different.

atwowheelguy

http://www.ford.com/trucks/f150/specifications/payload/

It appears to me that for 2015 the "Max Tow" option no longer adds payload. It does come with the 3.55 axle.
What I see now is:
Standard Payload
HD Payload with 17" wheels (XL)
HD Payload with 18" wheels (XLT/Lariat)

The HD Payload comes with the 3.73 axle.

My preference is the 4x2 3.5 EB 145" WB Supercrew 5.5' bed. The only available GVWR is for the '15 is 6800 lb. My same '13 has 7100 lb. GVWR and 1607 lb. payload. If they dropped 700 pounds of weight, and only dropped the GVWR by 300 pounds, maybe it gained some payload.

As before, it appears that the '15 HD Payload package is only available with the 6.5' and 8' beds, so I am out of luck for any HD payload. It looks like they don't want 5.5' bed trucks to be towing heavy trailers.

With the '15 145" WB 5.5' bed 3.5 EB Supercrew,
Standard Payload = 6800 GVWR, max payload 2070 lbs. (Actual will be lower depending on options)

With the '15 156.8" WB 6.5' bed 3.5 EB Supercrew,
Standard Payload = 7000 GVWR, 2230 lbs. max payload
HD Payload with 17" wheels (XL) = 7600 GVWR, 2660 lbs. max payload, gains 430 lbs. of payload
HD Payload with 18" wheels (XLT/Lariat) = 7850 GVWR, 2900 lbs. max payload, gains 670 lbs. of payload over standard

For what I want to drive, it looks like the only advantage in trading for a new one will be just the payload gained from the lighter aluminum body. I just don't want to add another foot to the wheelbase of what I have now to get the HD payload. I think just gaining maybe 200 pounds of payload is not worth trading up. I really like what I have now, but I load it to within 50 lbs. of the RGAWR.

brulaz

Think you are right.

In my case, I'm right at or a bit over the rear GAWR. And I want to move to a 4x4 and add a couple more batteries to my tongue weight. So HD Payload seems like the only option with the 6.5' bed SCrew.

Like you, that's longer than I would like but I could probably get used to it as long as I get the rear sensors and camera.

acadianbob

I don't think you can get Max Tow with 3.15's. You probably have Trailer Tow.

king nothing

If you have any gears other than 3.73, you don't have max-tow. Max-tow equipped trucks have tow ratings of 11,xxx#, not 9200

smokeywren

The Max tow pkg varies with trim. One for plain XL, another for fancied up XL or XLT, and the third one for Lariat and fancier trim.


For 2011 thru 2014, here's what the Order Guide for USA dealers says:


MAX TRAILER TOW PACKAGE – POWER, CHROME MIRROR (60C)
Availability: • Optional on Lariat, King Ranch® and Platinum
Requires:
• 3.5L EcoBoost™ Engine (99T) or 6.2L V8 (996)
• 3.73 LS rear-axle ratio with Heavy-Duty Payload Pkg. (627)
• 3.73 electronic-locking differential axle (Lariat or King Ranch® w/Off-Road Pkg. – 55A)
• 3.73 electronic-locking differential axle is standard without Heavy-Duty Payload Package (627)


Includes: • Upgraded rear bumper • Class IV trailer hitch receiver • 7-pin wiring harness • Upgraded radiator • Auxiliary transmission oil cooler • Trailer Brake Controller • Side Mirrors, Manual Telescoping Trailer Tow w/Power Glass (includes heat, memory, turn signal & puddle lamps & Chrome Skull Caps)



I( doubt it if you are in the USA. Canadian Ford trucks have their own Order Gui8de which is different that ours.


Here's the order guide for the 2015 model:


MAX TRAILER TOW PACKAGE (53C)
Includes:
3.55 Electronic-Locking rear axle (axle is changed to 3.73 electronic-locking differential if ordered with Heavy /Duty payload package


My 2012 F-150 EcoBoost with 3.15 axle has the regular tow pkg, but not the max tow pkg. I wanted max tow but with the 3.15 axle ratio. Not available, then or now.

2talltechie

So in summary,

• There is no extra payload with max tow.
• The regular tow package will likely tow all that you will need before hitting the payload capacity. (10,000+ lbs)
• The default Lariat 3.15 axle will give better overall mileage.

Good reasons for picking the regular tow package over max tow.

Counter arguments would be, 3.55 probably better if pulling in upper weight ranges, and the max tow throws in the e-locker virtually for free for about the same price as ordering tow+brake controller+e-locker separately. Sounds like e-Locker might be a necessity if have 4x2.

Some might have a better fit with regular tow and an an a la carte 3.31 or 3.15 e-locker. However, might take awhile to recoup cost in gas mileage.

king nothing

False. The GVWR on a max-tow truck is 500lb more, 7700 vs 7200. That equates to 500lb more payload in otherwise identically equipped trucks

smokeywren

Wrong. I don't know about 2015 model, but 2011 thru 2014 the max towe pkg included about 500 pounds more GVWR and payload.


Wrong. My 2012 SuperCrew 4x2 EcoBoost with 3.15 ratio is overloaded with my 19.5' TT that grosses 4,780 pounds wet and loaded on the road.


Maybe that depends on the driver? But in my case, I average around 15 MPG unloaded and 9 MPG towing that 5,000-pound TT across the country. Most folks with similar F-150s but with 3.55 or 3.73 ratio claim better MPG than I get.

Lux194

I have a similar dilemma. I’m getting ready to order a 2015 and want the electronic locking rearaxle option. I’m torn between the max towpackage (3.55 Electronic Lock included) versus just adding an electronic lockto the regular tow package (3.31 Non-Limited Slip included). It’s more cost effective ($120.00 Savings) toadd the max tow package. Plus, you getthe brake controller, upgraded rear bumper, & another 1000 pounds of towingweight. I will probably never have aneed to use the brake controller and the regular tow package suits my towingneeds. I tow a 6000 pound ski boat withsurge brakes. I don’t want to sacrificefuel economy by having a 3.55 that I don’t need versus a 3.31. I can’t find any specs that specify thedifferences in fuel economy among the different axle options. Will there even be a difference? Any input would be appreciated.