Has anyone has the problem with a crack of the frame on the right side just behind the front wheel, near the rear of the A frame?

Yes, mine was cracked at the joint on the frame and the A arm mount. Welded it back up...hope i holds.

You might find some good info on frame reinforcement here. Helped me.

http://home.comcast.net/~petelohr/einstyn1/einstyn-06.htm

Mine was cracked there as well. Well it was after the car went airborn. I welded it back up and welded a brace in there for extra support. it has been fine since then.

yeah mine is cracked too. its pretty common just make sure whne you weld it back up drill out a little bit at the start of the crack and end of the crack to make sure it stops spreading then weld it up and reinforceit

I used a jackstand to close the gap. The weight of the engine pushed it right back where it is supposed to be. Make sure you clean the surface too. I used a die grinder to grind away some of the old factory weld.

Thank everyone for all the information, I will get right on this.