im just now finishing up my open drive swap, i used my original 1 3/4 springs from my 46 1/2 ton, i just ordered new 1 3/4 perches from jc whitney and welded them onto the s-10 rear and they worked great, now to finish up the tranny install and figure out the driveshaft length, then i should be ok, ive taken lots of pics, ill be posting soon