Stuff that'd get you killed. Things like putting the tie rod bar out in front where if you ever hit any road debris and it bends it, you could lose control of your steering. Suicide perch with transverse spring out front with no frame horns or bumper to take the hit. Basically letting your steering and suspension components serve as your bumpers. I have no room to talk. That's how my suspension is going together, but I have some plans to make a bumper that will at least somewhat protect the tie rod. I also plan to use a very thick tie rod bar.
Simply put, no frame over the front axle. There are many ways to accomplish this, but that's the common denominator. Rich