Leave Spring Negative Arch

So my leaf springs are starting to take on a negative arch, right now, they are pretty much flat. I assume this is from installing my longer shackles in the rear, and probably from being on my truck for 150,000 miles. I am just wandering if I throw a aal in the will it correct the negative leafs, or do I have to replace the whole pack with some new ones. And if i replace the pack will it just negative arch again because of my longer shackles. Here is a pic of my leaves:

 

Lets say I got a Deaver pack off wheelers, would this lift the rear to much (like would it look like a hotrod) because it says that it adds additional lift. I would have longer shackles+a bigger leaf pack, so would that give me way to much lift in the back?

 

I stuck a set of AAL's(Skyjacker) in mine, replaced my bottom leafs(not the overloads, the ones right above it with the clips attached) and my leafs have a nice curve to them, even after 4 months of settling, they are still great. they just squeak a bit....

 

that'll probably be alot cheaper too, right?

 

Dealer was $700 for my leaf packs................ EACH!!!!!!!!!! I said F that, and asked if thy were joking with me.

 

no, no, cheaper than the deavers

 

see my truck has leafs just like your but i sits perfectly level...i i am but going to leave them alone. and it only has 90,000 miles on it.

 

I called deave and they are making me a custom leaf pack with only a half in rise in hight and it was $640 for the set i think that what there packs go for is $640

 

Did not know leafs are that much.

 

mine are pretty flat but not negative arcked like yours. Atleast not yet.
But I plan on getting the leaf packs from skyjacker that provide 2.5" of lift. Ive heard great reviews from them.

 

I was just wondering the same thing, I'm installing my aal tomorrow, I'll let you know how it looks afterwards

 

ahh good to hear!

 

Same here, re-arched them 100% with the Skyjackers. And after 4-5 months, they are still arched after settling. Still 2" higher than before with my flat leafs.

 

Mine were past flat...than i broke a leaf on the driver side by repeatedly hauling mulch and compost. The whole bed started sagging compared to the lift in the front,

So I upgraded to OME. I would recommend you get new packs (Skyjacker, OME, stock, whatever) if you plan on hauling anything with any mass at all.

 

mine have only 30k on them and have a negative arch already

 

I'll top that, my brand new, 1 week old factory springs have a negative bump in them. I just got the frame replacement done, and the factory springs sit flat with a topper on, I think I'm gonna get myself an AAL here soon to fix it a little. But seriously, what's toyota doing putting these on? My cap can't weigh more than maybe 300lbs, that should be enough to squash the springs, should it? The original ones on when I first bought it snapped in half, the middle leaf on both sides was busted and it only had about 70,000 on it then.