I have a question for you chassis gurus. What would you trust more on a stock nova subframe; ball joint grease zerks or holes in the subframe? Right now, the driver's side grease zerk shows to be 1/4" forward from a reference hole on the subframe than does the passenger side grease zerk. The reason I ask is that I am trying to establish a chassis centerline. Would it be best to build off of a chassis centerline that is perpendicular to a line drawn between the two grease zerks or build off of a chassis centerline that is actually the exact center of the subframe? If I opt for the ladder, my wheelbase will be off from driver's side to passenger's side (according to the current location of the grease zerks) by 1/4". I understand that control arms move and get bent. Thanks in advance for your help.