I had an AS 2" Leveling kit installed on my 2009 F-150 Screw a few months ago and it looks great, but I noticed that I am 1" low in the rear now. My rear blocks are 1 1/4 ". My question is should I go with a 2.5" leveling kit or 3"? I talked to Kevin at AS yesterday, and he suggested the 3", but he was under the impression my rear blocks were 1 5/8 ". I want to be level from front to back, but if I can't be, I'd rather be a little high in the back.

Thanks in advance.


Kevin.

 

You can change out you rear block with a 3" block to level it out. If you tow or carry loads in the back, I would install AALs to level it.

I just did my front with a 2.5 in AS and will do the AALs tomorrow. I tow a boat so it was a no brainer for the AALs.

 

Thanks Barryrod. I don't really tow anything of significant weight so I think the blocks will work fine. Kevin at AS said he could make me 2.5" blocks if I wanted them at no extra charge, but it looks like the 3" will do the trick also even if it puts me a hair higher in the back.



Kevin.

 

Would this go for a 2001 4x4 also and here is a stupid question, what are aals?

 

A 1.5 lift shackle is also an option, they are a bit more of a pain to install if you have a receiver bumper.
AAL is short for add a leaf

 

Exact same situation as you... '09 4x4, 2" AS, front a little higher than the rear (~1/2"). I bought the 1" steel blocks from fatbobsgarage with their longer U-bolts and just stacked them on my stock blocks. If you go with the 3" block to replace your stock block, you will have almost as much rake as you started with before leveling the truck.

 

I'm in the same situation can't decide how big I should go in the rear. IMHO I think some rack looks better. Does anyone now in the stock block is 1 5/8 or 1 1/4 or maybe both (do they have a angle) Had a buddy but a 1" on top of the stock and it looks level but so does mine HELP!!

 

If you carry a load in the bed or trailer at all, you will want some rake

 

On my '09 4x4 it is 1.5" flat. With my 1" steel block from fatbobsgarage stacked on top, I have a 5/8" rake - just right.
If you don't mind a 1 1/8" rake, just use a 3" block instead of your stock block.

 

Measurement wont be exact for each truck, especially older because of the springs sag rate differs. My advice is to get the 3 inch block, stacking blocks is dangerous and even more so when towing. By stacking blocks you chance the truck spitting out a block, and it will more than likely spit one in a corner when there is a side load in the suspension. Once this happens you can risk a spin out or even a roll over.

 

I understand your concern. I did a lot of research (and thinking as an engineer) before stacking my blocks. I also agree that the height of the truck will vary over time. That said, I don't think there is any issue stacking a 1" steel block on top of the factory 1.5" block. If you look at highly lifted trucks. they almost always have large blocks stacked on top of each other (dump trucks often have stacked blocks as well). The taller the blocks used in stacking, the higher chance they will separate as you have mentioned. A short block like the 1" one I used - combined with the two large pins present on the F150 - should be fine under any foreseeable situation. The advantage of using the 3" block is that you get a new "bump stop" at the right height. Mine is effectively 1" lower than it should be. I am not concerned about this since my truck has the stronger springs that came with the 20" wheels in '09 (3+1 springs instead of the more common 2+1). I don't often put more than a ton in the back anyway.

Note that I used a steel block. You can get an aluminum block as well, but I don't like combining dissimilar metals due to corrosion concerns.

 

I'm going thru the exact same dilema. I ordered 3" blocks from AS (thinking that they were the only size offered). Now I'm concerned that the rear will be too high. I have a 2" front kit. I don't want the same rake it had from the factory.

Can the blocks be cut down?

 

I believe our factory blocks are 1 5/8 inches so your rear will go up 1 3/8 inches while your front went up 2 inches. It should be a net gain of 5/8 inches in the front from stock.

 

my advice is to get air bags for the rear. this will give you total control, and you can adjust for dead level, or rake of your preference, REGARDLESS of the load in or behind the truck.

they are a very easy install, and cost about 200.00. if you want to get an onboard air compressor (the best way to go in my opinion) for about 200 more.

with nothing in the bed of my truck, i can get about 3" or height change from empty bags to 100lbs of air. i have a 6" lift and hauled drums of water once(about 1500 lbs) and sat dead level with about 90 lbs of air. they really work great!

 

3"Block installed