34 chevy chassis question

Hey guys

I have a 34 chevy 3 /w, I just pulled the body of today and started getting the frame ready to go to the media blaster.
The frame is in good shape and it doesn`t look like its been in any wrecks but when I started measuring the frame to make sure it was straight and square I found that it was off by a 1/4 in. when measured from corner to opposite rear corner (basicaly the x pattern). I was just wondering if you guys think this is within tolerance for a frame this age or should I try to get it dead on square?
Thanks in advance
bryan

It would be good to get the frame squared up, but more importantly are the wheels square when you measure them???