5point

I’ve been reading a number of post regarding HDPP vs Max Tow package. I’ll start by coinciding you cannot change the label stated payload. My question is what is the difference between the two. I have a 2018 SCREW 4x4 157 inch WB. It came with the 9.75B axel and at a minimum has the .10 thick frame according to Ford spec docs. It has 2+1 rear springs. Looks like a space large enough to accommodate and additional leaf is present in the clamp that holds the spring/leafs together. From what I’ve read, the brakes are the same and the max tow package comes with the extra cooling upgrades. It’s seem to me that if I added the extra leaf and upgraded the front springs, I would essentially have the HDPP. What am I missing.? Forgot to mention I have 18 in aluminum wheels with Goodyear C rated tires.

Sweetlou

Is that the heavy axle? I thought the HDPP was the only model to have the highest rated rear axle.

The HDPP has a stronger front coil and stabilizer.

HDPP frame is min .11 thick.

Shocks are different all around

Probably missing something else

jeffinthebag

Not sure if it still applies but the hdpp also had bigger beefier rear bearings too. At least they used to.

5point

In reading the different post it was the consensus the the 9.75 b rear axel is the heavy duty version. The lighter is the 9.75 without a b. The max tow comes with a beefed front swaybar I think I have read it is the same as the HDPP sway bar. I’ve tried to measure the frame thickness and keep coming up with .10.8 just shy of .11, hard the get the calipers in the small holes in the frame. The reason I’m asking is it seems reasonable to me (admittedly not and expert or even close to it), that by changing the front coils, adding a leaf and possibly upgrading the shocks, I would in effect have the same truck?

G-Force

What is your rear axle GAWR on the door sticker?

5point

I believe 3800

5point

Ok after doing a lot of research, it appears the difference between max tow and max payload are suspension parts, rear axel and possibly frame. The rear spring come in three strength levels, 2+1 3800, 2+1 4050 and 3+ 1 4800 lbs. The front coil springs come in two levels, 3600 and thicker spring 3750. The shocks are also different in max payload. From what I can find the 9.75 come in axel strength 4500 and HD 4800 lbs. The final difference is the frame. It comes in HD which is .10 and HDPP.11. So to my way of think everything can be upgraded (with the exception of frame) essential upgrading you payload to possibly, 300 lbs. lower then the max payload package amount, difference being the axel. I’ve read difference posts stating that they have seen frame sticker that indicate HP frame on. HDPP optioned truck. So I guess the real question is can a .10 frame handle a heavier payload if all the other components are upgraded. It seems that the component upgrades could be accomplished for under the $1500 dollar HDPP option and the upgraded would probably be of higher quality the OEM.

acdii

Doing all of that doesn't change the white sticker values though. Legally, you are not to exceed that sticker, regardless of what is actually installed on the truck.

akbrian

^^^^ musta missed that question on my drivers test. In fact no where in the dmv book does it say anything about weight of a vehicle. Over load permits are issued all the time for big rigs and have nothing to do with vehicle capacity they are due to damage that could be caused to the road. I have never once heard of any private citizen getting pulled over or sued because the vehicle was over weight on the manufacturers tag. Please don’t cite some “Florida man” article either if you got some court cases to cite let me see em. Sorry....end of rant.

5point

White sticker not withstanding, can the frame take it. It’s been reported on another thread that someone without the HDPP option had a HDPP label on the frame and someone with the HPDD had a HD label an HPDD optioned truck. Is the HPDD frame actually need ed for the increased payload? More of an academic question rather then a legal question. It seems that the white sticker reflects the payload for the specific truck with its specific components. If it just comes down to suspension parts, they can be upgraded to or above the level of the HPDD truck and weather the sticker says so or not the upgrades could make it just a capable.