At the moment I have a 3 inch lift. I have 3 inch spacers on the coils and 3 inch blocks on the leafs. I want to replace the leafs and blocks with a full lead packs and use rustys inch block kit on the rear leafs. Along with that I want to put full size 3 inch coil springs in the front with a one inch spacer. My question is can I do this with the shocks I have now on my 3 inch lift? To make it a total of 4 inchs.

 

you can, but you might not have as much flex as you'd like. I'd try to stray away from the blocks if you can.. may as well go 4" packs if that's what you want. Prevent axle wrap.

 

Yes you can, the only thing is your current shocks "might" limit travel. But odds are they would be fine.

 

If they were shocks that were made for a 3 inch lift you should be fine. Unless your looking for unlimited flex and you wheel all the time you should be alright on those shocks.

 

I'd look at the IRO 3.5" packs and use the 3" coils up front with a .5 or 1" spacer, which ever makes it level.

 

use shackles instead of blocks if you must go higher than the leafs... blocks will eventually make junk out of your expensive leafs.

 

FYI, I have the Rusty's 3" lift (with leaf pack) on mine. When I got it, at least 2 of the shocks were blown and the leafs were sagging. There is now a rake to the vehicle where the rear appears 1-2" higher than the front. I've been considering putting a 1" spacer on the front springs to level it out some.