2" front level. If you want more rear lift, AALs are the way to go IMO. Kill 2 birds with 1 stone.

 

More recent pics

 

I already have a 2" level installed and i think that 3" blocks will raise the back too much. I just want the rear to sit a bit higher and not sag under a heavy load in the bed.

 

AALs are you're best bet with the added payload capacity...no more sag

 

Can you put AAL's if you added blocks to the rear of a 2wd or do the AAL's replace the blocks?

 

Ya you can, but your rear will probably be very high compared to the front

 

I have a 3" level in the front and my front is 1/2" higher than the rear unloaded. I don't like the way my rear sits so low when I have a load... we shall see... I can always remove the blocks...

 

You should def get rid of the 3" level and put a 2" in there. Most have nothing but problems down the road with 3"

 

so adding that leaf really increased your payload by about 950 pounds?! is it worht it? how much did it cost??

 

Very worth it. I can't remember...something like $120ish for everything. Here's a recent pic of my friends project car on a 24' trailer. We loaded it at midnight and looking at it in daylight we realized the car should have been sitting a few feet more to the rear...think about how much weight is on my rear right now (front engine car). I also had a ton of crap in the bed, including an engine stand and cherry picker boxed up (about 300lbs alone). Check out the "what do you tow with your truck" thread in the 2004-2008 section and look at other trucks with less of a load saggy in the rear.