Greyhound Chassis

[tdperth]

Hi all,
   I have  found the chassis is not completely flat. Both rails are slightly bent. From the A posts there is a 5mm deflection up at the front and from the B posts there is a 12mm deflection up at the back. The mid section between the A and B posts is flat. Both rails are the same and there is no twisting.
   
   Does anyone have the factory drawings for the Greyhound chassis or know if the chassis is designed this way?
   
   Thanks, Trevor