CPP drop Control Arms?

[HotRodGMC68]

Hopefully some of you suspension buffs can help me out here... I was looking on CPP's site the other night and found their drop control arms for '71-'72 C10's (7172TCALhttp://www.classicperform.com/Store/...k/6370TCAL.htm). I've already got a good amount of drop on my truck thanks to the No Limit 4 link and ECE 2" drop springs (-1 coil). here's where the fun starts... my truck is a 3/4 ton and I'd like to see it an inch or two lower without going to bags or a full custom set up... I don't have a lot of cash to spend. The rear is going to get a new 4 link setup tuned more for drag racing that I'll be building from scratch myself. The truck is going to stay a 3/4 ton because the "wow factor" is priceless... well... when people actually realize it's not a half ton. does anyone know if these control arms from CPP are worth a damn? and if they are, can I stuff 3/4 ton ball joints in them to work with my spindles? Or will they even fit on a '68 (since they're specified as a '71-'72)? I'm sure a lot of people think I'm nucking futs for wanting to drop a 3/4 ton truck and drag race it, but hey, it's what I've got and it's a blast of a truck to have! Any help is appreciated. Thanks!