I have an 03 2wd and im putting a 3 inch lift spindle on. What size block would i need for the back to make it sit level? 1 inch?

 

I have the same truck, though I don't know your answer, I was wondering if you are just doing spindles or if you need to also do the shocks and springs. I saw a couple auctions on ebay for our truck and they are selling 4 shocks, spindles for front and blocks for the back. Go to the site and type f150 lift and you'll see them. I saw some around $400 but didn't have a brand name shock that I;ve heard of.
Steve

 

Probably the doetsch tech ones, from suspension max. I'm getting some spindles from a friend, so im wondering if i need a block too? Also he says all I need is the spindles and all my oem stuff can be re used. is that true?

 

Yeah, you can use all of your oem stuff.
I'd suggest parking your truck on a level surface and jacking up the front end 3 inches. Then decide if or what size block you need out back.