5 gallon aluminum tank, now standard issue with all the Air Ride setups, and 1/3rd the weght of the steel tank, 7lbs. vs. 21lbs.
A variety of 3/16" and 1/4" thick steel for brackets and whatnot, and a nice 3.5 Id DOM tube for the c-notches.
Some 1/4" wall DOM tube for the 3 links and a bunch of 2x4 .120 wall for crossmembers.
Some real nice and THICK (3/8in.) front upper shock mounts that I got from my good ol' canadian madmen buddies, good thing they had twice as many made as they needed, they are doing a full frame off job on a Lightning up in their neck of the woods.