Rear blocks

Greetings All
I have a 2005 Silvey 4x4. I have cranked the "T" bars to allow my 305x70x17 Good year MTR's (which by the way SUCK) wanting to put 3" blocks in the back to make it look right. The nose is the same height as the tail (just not right).
Looking for some info on doing the blocks and where to find them.
Is it hard to install the blocks?
Any information would be greatly appreciated

Are you wanting to keep the factory block in there or replace it with a 3 inch (stacking blocks is not recommended) and on top of that, could lead you to axle wrap. This scenario is unlikely since your not going huge with the blocks but is a possiblity. The smarter way to go about this is putting in an add a leaf (that could give you up to 3 inches) in your spring pack. Back to blocks any 4wd shop in your area will have them... You could go through 4wheelparts.com (although I wouldnt, Im not there biggest fan). Blocks are fairly straight forward to install if you have the tools and the room... Biggest word of advice (even if your ubolts will fit with the new blocks, NEVER, NEVER reuse hardware). I would suggest grade 8 hardware for the new stuff.

I would advise against using blocks. I have 3" blocks in the rear of my truck. They cause really bad spring wrap, even with the heavy duty springs (same as 1ton w/ overloads) If I break the rear end loose accelerating, the spring wrap unloads, and I get terrible hopping from the rear. I'm always afraid something is going to break.