Hello fellow A-Body enthusiasts, I've been working on a Chromoly K Member with stock spindels. Its currently installed in my 72 Dart and I went 9.60's at 140 mph. Here's some pics, feel free to give me your thoughts/opinions/comments, thanks.
Not much side load reinforcement. Diagonals on bottom only support the rack.
Probably fine for drag car.
I would guess the biggest question for alot of us is which tubular k frame is suited for autocross and hard handling? For those WHO are not just satisfied with just navigating a straight line.