What size rear block?
 

I have a 2007 STX 4x2 with a 2"level and 33"nitto terra grapplers. The truck sits level but the front wheels have more gap between the fender and the tires than the rears. So my question is what size block should i throw on the back? Stock 4x4? I have no experience with blocks and im just curious as to the sizes and actual lift ill get from them. Thanks!

This is what you need:

https://www.f150online.com/forums/pa...w-u-bolts.html

The rear blocks on the 2009+ trucks are 1.25" tall vs the stock 4x4 ones on the 2007's which are 2" tall. With your truck sitting just about level now, the 1.25" rear block will give you back that little bit of rake your looking for.

Wouldnt i want the 2" 2004-2008 4x4 block? Since my front is as high or higher than an 07 4wd the 2" in the rear would pretty much take me to 2007 4x4 height. Right?

That makes perfect sense to me. It would put you at the stock height of a 4x4. If you are looking for some 2" rear blocks with U-bolts I have some for sale off of my 2006 FX4. I put on a 6" lift so I dont need mine anymore. I have them for sale on F150forum but PM me if interested and Ill send you all the info.