Hello, this is my first message here, I aplogize if it was answered hundred times before but I could not find the answer although I tried.

I've bought a pair of spacers - front leveling kit that claims to give me 2.5" raise (in fact the thickness is ~1.5") Why didn't I buy full kit? Because at that moment I had old struts and it was obvious to me that I only need front leveling, but later on I had to install new struts that lifted up the front a bit but I still really need to lift the body for a few inches more.
Would I need a pair of rear blocks after I install the front spacers? Should it be 2" or 3"?

Bonus pic (no spacer/leveling at all) I bought this car a month ago, trying to put it in perfect condition...

 

Wow, that's a nice looking truck! I like the rims!