[sweetk30]

stock front are tapered leaf design = wide/thin/wide. as said its 2.5" in the middle . so any 73-87-91 solid axle leaf setup will basicly fit in the k30 .

as to re-arch don't waste your money in my opinion . .... and you can only arch so much before you need a longer main leaf to still get the eye's to install correctly in the frame .

and tapered leafs are not ment to be re-arched so I was told buy a old timer spring guy years ago . and don't mix-match reg leafs and tapered .

if bbc in your truck go 2" or 3" tuff country HD front leafs for the big block weight .

I have 3" in my k30 with sbc but a 850lb snow plow on the front . works good and rides good even with plow off.

don't forget the special dana 60 size u-bolts needed over std 10bolt/dana 44 stuff. and longer grd-8 bolts for the 2 on the pumkin or a stud kit if you prefer .