user 83720

Not sure where to find axle codes but here's what Ive got

glo76

On my 2018 with MaxTow my code is
JL34-5560-BA

(GVWR 7000 lbs, Rear GAWR 4050 lbs, payload 1551 lbs)

aliass24

What’s your front GAWR rating? 5.5 bed?^

2016Limited

I have a 2016 Limited.
Has the tow package (not max tow)
Rear GAWR 3800

Has the FL34-5560-CH springs.... like you are saying come with Max Tow.

As covered in another thread, the difference in Tow and Max tow was a beefed up hitch receiver and a thicker front sway bar.

glo76

Front GAWR is 3600 lb. Yes it's a 5.5' bed.

Mark Miller

I checked my truck today 2017 XL Super Crew 4X4 STX Package 5 1/2' bed I forgot to look at the first set of letters but it also has the 5560 CH on the springs!!!

gleytch

My 2018 SuperCrew 4x4 with 5' 5" bed and Max Tow has 5560-BA.

7000 GVWR
Front 3525
Rear 4050

SPR code from door sticker 33BB
Payload 1626

Mike Up

If you have the Max Tow package with 20" wheels, you get the upgraded rear axle and steering ratio. Otherwise the standard 3800# rear axle. States this right on Ford build it site, under Max Tow Option.

Front axle has been higher rated on 157" wheelbase, or 20" wheels, or platinum trim since 2015.

My 2016 in my signature has 3450# front axle due to my 36 gallon tank. 23 gallon tank models get 3375# front axle. My rear axle is 3800 lbs.

My 2010 and 2012 F150 configured just like my 2016, both had 3750# front axles and 3850# rear axles.

Mark Miller

Mike Up,thanks for the info my truck has Max Tow Package with 20" wheels!!

Mike Up

I should have also posted that the 2016 F150 has a 7000 lbs GVWR and a tread act sticker payload of 1890 lbs. and a 36 gallon gas tank.

The 2012 F150 had a 7350 lbs GVWR and a tread act sticker payload of 1582 lbs. and a 36 gallon gas tank.

The 2010 F150 had a 7200 lbs GVWR and a tread act sticker payload of 1430 lbs. and a 36 gallon gas tank.