My question is concerning the 2009+ F-150, particularly 4x4, 145” wheel base, 5.4L models.

Cropped chart was pulled from this link.

2009 Ford F150 Specifications

All information seems correct, and mirrors other sources I’ve found, including that on Ford’s website.

Here’s my issue.

A regular cab with the 5.4L “HD package” shows a curb weight of 5,436lbs. An extended cab with the 5.4L shows a curb weight of 5,493lbs. That is a difference of 57lbs.

A regular cab with the 5.4L “HD package” shows a maximum payload of 2,700lbs. An extended cab with the 5.4L shows a maximum payload of 1,650lbs.

That is a difference of 1,050lbs.

Why?

This amount is also reflected in the listed GVWRs, 8,200lbs and 7,200lbs respectively.

To my knowledge both have the 3V 5.4L, and both have the 6R80 6spd automatic transmission. Both would seemingly use the same 145” WB frame. I know there is a 9.75” Sterling semi-float. Randy’s Ring & Pinion also lists either a 10.25”, or a 10.5” semi-float axle. Do either of these exist? Is this the difference? Or is it an additional transmission cooler? Is it additional rear leafs?

Towing maximums reflect the difference in listed curb weight, kind of. 11,300lbs and 11,200lbs respectively… so 57lbs vs. 100lbs.

Basically what I’m asking is, what is the “HD package?”

 

HD is only available in the listed configurations. It uses the 10.25 diff with 7 lugs I believe.

 

I would say the difference in payload and GVRW is directly related to the amount of steel involved in a regular cab vs an extended. The gating issue with payload/GVRW et al is the weight the axles can handle. For a better explanation look at the GAWR for the two configurations...you should find a direct correlation to the GAWR ratings and the curb weights.

The axles can only handle so much before hitting their limits.

 

From what I've found on the order guides and elsewhere, the HD Payload package includes the following:

HD PAYLOAD PKG -inc: 8200# GVWR, 2750# maximum payload, LT245/75R17E all-terrain BSW tires, 17" high capacity 7-lug steel wheels, HD shock absorbers & frame, upgraded springs/radiator/aux trans oil cooler, 9.75" gear set, 3.73 limited slip axle (REQ: 99V Engine & 53M Max Trailer Tow Pkg) Code: 627

 

As per my original post...

57lb difference in curb weights.
1,000lb difference in GVWR

Still looking for GAWRs.

See below.

Thank you. That's as detailed and an informative as of an answer as I've received. However... I've not seen a 7-lug truck since the advent of the 6-lug trucks in 2004.

If it truly is a 7-lug 9.75" rear, that makes things a loooot easier. I can add the radiator, the gears, coolers, springs, etc. 1 lug nut less per wheel isn't going to scare me.

 

You're welcome.

The seven lug wheels came along in '97 or so when Ford introduced their "light-duty" F-250 which was basically a beefed up F-150 in the new (at the time) body style. Back then, they were seven lug (and I seem to recall) seven spoke chrome clad steel wheels. Ford used them on the LD F-250 and in the F-150 7700, which was the replacement for the F-250 LD. Basically the same capability as the F-250 LD but a name change to keep the distinction between the F-150 and the Super Duty without blurring the lines by having two F-250 trucks in two different body styles.





The top photo is a '98 model F-250 and the pic below it is an '11 F-150 with the HD payload package. You can see the 7-lug wheels in each.

 

Thank you.

What I see myself doing is buying a super cab 6.5' bed and adding everything from the HD package except for the 7-lug axles. 1 less lug per wheel isn't going to spook me.

 

I would check the stud diameter before deciding.

 

2005 F-150 lug nuts fit on 2003 Super Duty axles. So, I'd be pretty surprised if they were different, but it is a good thing to check.

 

Man that HD F150 would be a great truck to lift and run some 40" or bigger tires with those heavy duty axles.