Suspension Experts- HELP!

[dooce]

I am about to be buying a bunch of suspension parts for my truck and I recently found out they might not work together. I am buying a set of western chassis 2.5" drop spindles and 1.5" springs to lower the front. I also plan to buy a set of NON air bag type upper and lower tubular control arms from CPP. I was looking thru another thread a few weeks ago and someone mentioned that drop spindles and and drop control arms cannot be ran together for whatever reason. It doesnt say anywhere on there site about these being drop control arms. So assuming they are not of the dropping type, will I be able to run drop spindles and these control arms? I am going to try and contact them to find out if these are drops here soon. thanks for your help DOOCE