who makes the best, lightest k-member
 

and what springs to help my stang leave hard

D&D makes the chromoly ones.

I went with the roadrace heavy duty ones from Girggs Racing:
http://www.dariusrudis.com/mustang/a...C01600_JPG.jpg

i wondered if they were actually chromoly

I heard that chromoly is not the best shoice for the street since it is so stiff and can break. I went with the QA1/HAL Kmember, and it fit great. It's one of the lowest priced, and I had heard good things about it from everyone before I bought it. It also comes with spring perches if you don't want to use coilovers.

PA Racing or AJE.

it depends what you want your k member for. If you purely drag race go with a cheap d&d or one of the other drag models. If you still heavily drive on the street or want to hammer the twisties go with:

1. Maximum Motorsports
2. Griggs
3. Kenny Brown

These Kmembers will run a little heavier, but WILL last a lifetime under extreme abuse!