Hi new here and I apologize for waking up an old thread. While I understand that the addition of leaf springs will not increase towing capacity/payload I am curious to add them mainly because it looks to me like there is room in the leaf spring carrier for an additional spring. 2019 F150 STX 6.5’ bed super cab. I would imagine the Max Tow models have an additional spring this filling the gap I’m observing. I will post photos asap.

 

FYI, I have a 2019 Max Tow. I have the FL34-5560-CH springs...1,600 lb rated.

 

I was going to ask one that was maple related, but changed my mind.

 

Thank you for the reply and part number! I am looking it up now.

 

For what it's worth, I found this information from another post on this forum. Here are all of the springs available for a 2019. Hope this helps.

FL34-5560-AH is 1,500 lb rated. Service part is FL3Z-5560-A
FL34-5560-BH is 1,800 lb rated. Service part is FL3Z-5560-B
FL34-5560-CH is 1,600 lb rated. Service part is FL3Z-5560-C
FL34-5560-EE is 1,900 lb rated. Service part is FL3Z-5560-D

 

Trucks with max tow do not automatically get the max payload. I learned that after I bought my 19 screw max tow.

I have thought about buying the Firestone airbags to keep the truck from squatting when hauling a 550# snowmobile or atv, or a 310# dirt bike on a hitch hauler.