ICON add-a-leaf trouble.

Hey guys,

I've officially entered struggle city.

So I purchased an ICON add-a-leaf (1.5in lift) kit and was hoping this would be an easy add in. Apparently I was wrong.

The instructions state that I should keep the factory overload spring off, but when I install the add-a-leaf the center pin nut pushes the bump stop way beyond normal limits even with a 1/2in trimmed off.

I have pictures showing the add-a--eaf next to the overload spring and the currently installed setup which looks very wrong. Help!

 

Seems you are running into the same center pin issue described and solved in this thread:
https://www.tacomaworld.com/threads/icon-3-leaf-pack-problem.570140/#post-18793430

 

EDDO, thanks for the quick reply!

For reference I've got a 2018 OR 4x4.

What doesn't make sense is that without the overload leaf it doesn't appear that there is any lift as the overload and add-a-leaf are roughly the same thickness. Maybe I'm looking at this all wrong.

 

You're not all wrong. Part of the lift will come from the thickness of the AAL (in this case, since the AAL and overload are close in thickness, not much lift will come from this), part of the lift will come from the arch in the AAL.

ETA: Look at the picture of your AAL and overload above. The overload arches down toward the ground, it's not really in contact with the leaves above it until you get a load heavy enough to flatten the leaf springs out so that they make contact with the overload. You do get a lift from the overload when compared to not having the overload, but only by the thickness of the overload. The AAL arches up, away from the ground. It will be in contact with the leaves above it always, which will help prevent the leaf pack from flattening out as much as without the AAL. This is where you will get your lift beyond the thickness of your AAL.

 

Thank you,

That reply definitely makes sense now.

Is there any benefit to keeping the overload or will that add unwanted stress or something I'm completely unaware of?

 

You'll get a little more lift (the thickness of the overload). I left mine in because I load up a bit for camping. I looked after my last trip and saw that the overload had come into play at some point with the AAL. That's with a full bed and towing a trailer on rough roads. Around town and empty I don't think the overload is doing much. I think that Icon doesn't recommend it because the AAL leaves are a bit shorter than the stock leaves. The overload is long and is intended to make contact with a large portion of the factory bottom leaf. The bottom of the AAL is shorter, so the overload wouldn't be making contact over the same area. I'm sure that there are people that will argue that it's a problem and others that will argue that it's not but I wouldn't be surprised if that was part of Icon's reason for not recommending the overload with the AAL. FWIW, my AALs are shorter than the overload. I'm not too worried, but I do check on things regularly to make sure there's nothing cropping up.

If you want to keep it in you'll need to make sure that your u-bolts and centering pin are long enough and also make sure that the brackets that come on the AAL don't interfere with the brackets that are on the overload.

 

How thick is the center that comes with the AAL? I cut mines down to the half inch, now I want to put the overload bar back on, so I need to get a replacement center pin?

 

Hi all.

Hoping you all could help me. I was measuring 23" from center of hub to fender since i got my Icon AAL installed w/ overload off. If the stock ride height for a 2021 TRD Sport DCSB 4x4 is 22" .. seemed it settled gto give me a stock lift again. I do tow a trailer occassionally (3 times on this taco) this year. Rarely have any load outside a bakflip mx4 cover. I also was riding 39" from ground to fender when i first got my taco lifted with 285/70/17 but now i am at 38". I do recall prior to my lift i was sitting at 36". Confusing is that my tires only added 2.2" in diameter so halving that i get 1.1" of ride height lift. so i can't account for the extra 1" of lift if i am sitting at 22" hub to fender.

UNless i am totally wrong and stock center to hub in rear is 21" like the front. I just read it was 22"

my bad for never measuring it prior to my lift.

Is this common?