[pooz911]

This is the spindle your looking for -

fabtech fts2588-7

I believe they have discontinued production of this but you may be able to find someone who has a set used.

I do not know of anyone who has done this modification but with all of my research of 3/4 - 1 ton suspensions over the years, I believe that this is the best candidate.

I do have a 3/4 ton truck that has a 3 inch body lift and springs in front.

Look at my cardomain link below for pics.