Ok, I was completely unsure about doing this mod to my truck. With all the horror stories of people with pre-2011 SDs and their "driving on tracks" experience with Add-a-leaf kits, I was very skeptical on weather or not to add them. After installing them I have to say, I AM COMPLETELY FOR HAVING THEM! They are great! They lifted the back up about 2" (exactly what I wanted), they drive JUST AS SMOOTH as my factory Springs alone.
I got the Pro-Comp Add-a-leaf kit. I was suprised to find out the kit actually uncludes 4 leaf springs. 2 for each side. I called ProComp and found out they did this to improve the ride over traditional single leaf AAFs.
The installed price was $229+tax. They really are a great simple and cost effective mod that will give you about 1200lbs extra payload capacity without giving up your ride quality.
I guess the reason for the uneffected ride quality it probably because of the extreme nature Ford went through to use only 3 leafs on the F250s this year.
I highly recommend doing this mod for those interested.
I also added Timbrens while they had the wheels off. Don't think they will ever come into use though.
I went with the ProComp 2" Add-A-Leaf kit. It includes two: 13150-1 springs and two 13150-2 springs. So in total, it adds 2 leafs to each side. The ride really is the same and the truck sits a good 2" taller (just like the F350).
I highly recommend this to anyone who has a 2011 F250 with the sagging issues I did.


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looks great! i have a AAL on my 2004 f-350 and it didnt effect my ride either, it actually helped the stabiltiy of the truck but i was just after the payload increase. At least now 100lbs in the bed wont make the truck sit like it has 3000lbs in her.

 

looks good...

 

looks great! i personally hate the squatting look of the newer f250's

 

Looks great

 

I am curious... What would be more effective in stabling out the truck when towing a trailer because right now wehen we tow the truck feels extremely unstable. Just looking for anyones input thanks

 

does the trailer connection sag at all? If it's sagging there it will make the trailer throw the truck around a bit.

 

Did you do this yourself? If so, how long did it take? Also, you said that your ride didn't change but have you noticed an increase in wheel hop? This is what I want to do as well as the truck clearly sags with any trailer tongue weight on it.

 

It Sags with our toy hauler hooked up and feels like the trailer really pulls the truck around and also bucks really bad. But we only tow it about 5 times a year so not sure if air bags would be a better solution.

 

Must be some very heavy trailers. I am a bit confused. Every truck will sag a little when you have any degree of substantial weight in it. Is the objective of this pro comp kit to increase payload or is it to appear empty when loaded?

 

yes ever truck sags but the new SD's do it very bad compared to the older years. my cousin is a manager at the local Camping World here in town and he said the new trucks are just horrible. Even the onespulling fifth wheels sag so bad compared to GM and dodge trucks. they stock ten moreair bag kits for fords than theother trucks because they are so bad.

 

what i dont understand is why ford only has two leafs in the rear now? They talk about the most payload and towing but in the rear world they sag like a loaded down mini van?

 

They did it to "improve ride quality". I think this is a huge fail on Ford's part. A 3/4 or 1 ton truck isn't supposed to ride like your grandpa's Cadillac.

 

at least someone other than me gets it!

 

i understand the ride quality but why have i seen some SD's with more than two leafs in the rear? does ford offer different springs now or something?