+1

Advanced/Discount Auto Parts will have the Grade A bolts and proper washers you'll need, Shouldn'd cost more then $12 for everything and they work as well ...if not better then those Rear $40+ kits most other dealers sell.

I've done this mod several times on customer cars & My Own, and have never had a problem to this day.
you'll need 4 Bolts that are 1/2" to 3/4" longer then stock and about 3-5 washers on each bolt....depending on how much of a drop your working with (trial and error)

As for the fronts, Skunk2 has never let me down and they are much cheaper then Ingalls.

G/L with your final decision and install.

-Jeff