Oh yeah, here is my plan.
Install front as explained in above thread.(2x14 heavy rubber shims)
Take shackles apart, sandblast,prime,paint, replace rubber sleeves, re-assemble shackles & install. Of course as mentioned by Curt B & also in one of the manuals, make sure the space is between 49/64" & 53/64"

Thanks again everyone for all the great advise & Ideas.