Any idea what does HD tow package do for 22 timberline?

[apex96]

When I looked, it showed different options for the rear springs which included HD tow. Also 3.31 gears will have higher contact pressure at the same pulling force. Also, the 3.31 has a different carrier assembly. I’m not saying that it won’t work. I’m just saying they are different.

I stand corrected on the springs. I couldn't find anything on Rock Auto regarding different springs but TASCA does show a different part number...
https://www.tascaparts.com/v-2018-f...-3-5l-v6-gas/rear-suspension--rear-suspension (look for part #3 where it shows two different springs)

For the rear differential carrier I found this one that they use for all gear ratios

Differential for 2018 Ford Expedition | TascaParts.com

www.tascaparts.com

And these three...

Carrier & Components for 2018 Ford Expedition | TascaParts.com

www.tascaparts.com

So I'll eat my previous comments. It appears there are three cases, with one being a slight variation of another (eLSD). One for the 9.75 and one for the 8.8 rear ends. I recall in the F150s that the 8.8 rears are rated for more than 6K but that's with a solid axle...

I do agree on the contact pressure being higher, as its a small gear.

In light of more digging, when special ordering it makes sense to add in the HD tow package. Do I personally feel the 3.31 can handle higher payloads, yes but that does come with a higher risk...

Now for 22' models, have there been more changes then documented on the 18-21' models?