Sub-frame connectors... Please build them correctly!

I installed mine upside down on a rotisserie on my Dart. Hope I can get doors to fit after I weld the roll cage in.
I think I rotated it right side up and supported by jack stands before connecting front to rear. Can't remember, we will see.
Anything is better than nothing. Your choice of what you want and can afford. My Duster flexes like mad on the track without any.

I remember the first time we got the hemi to hook up w/ 16" tires on it, got back to the pits, the door wouldn`t open right. then when I tried to close it , it just bounced back at me ! we put home made cheap tube type connectors on it, w/ a cheap roll bar , it helped but didn`t completely stop it. that`s why I went thru the floor and inside the rear frame rails on the fish, went w/ full 1/8" thick 2 " square tubing too.