help with a bagged four link

I have 2001 S10 which i bagged with the reverse trianglulated fourlink from FBI. It is a cantilever setup. I'm getting a wiggle in the rearend when i go around turns.... is this normal??.... can i fix it?? i do have shocks on the rear. other that this problem tho i love it.... i get mad lift out of the rear. thanks for any help.

I have a static drop and have the wiggle too. I'm not sure why it does that. It's actually scared me a couple of times when its done it to me on the freeway.

you might want to check you blocks and make sure they are seated right