[Lynn]

Have not posted on this thread in a while. Been handling some projects for Sherri. I did get to clean up each of the two frames I have here. I need some help from the Corvette experts.

I have sought help from the Judging Manual on this. No mention.

I know that the part number and date of assembly of the frame was stenciled on an outer rail. I found evidence; although hard to read.

I also know that, although the manual is SILENT on the VIN or partial VIN stamping on the frame, folks have posted pics of the VIN being stamped on top of the driver side frame rail just in front of the rear axle. I have two frames here, and NO EVIDENCE on either one of any VIN, whole or partial. One is pretty rusty, but not up on top. The other is not rusty at all, but still no evidence of a VIN.

Do you know if some of the 1970 models (restoring my 70 LT-1) could have been assembled without the VIN being stamped on the top of the frame?

Last question; again the Judging manual is silent on this. Both of these (1970) frames have some stampings on the underside. The rear reinforcing gussets on one of the frames are too rusty to see any stamps, at least before I get a chance to turn it over and clean it well. On the other, there are clearly stamps about the size of a quarter with -10 inside the circle. Pics attached. One frame has -30 in a circle on the driver side of the cross member; the other has -70. The judging manual mentions green crayon marks of something like "1" "2" or "3" to indicate how many shims need to go above the aluminum body mount bushing. But it says nothing about "minus" numbers with a circle around them.
The -70 stamp is not at deep as the others, but obviously done with the same process.

As usual, thanks for any help.