Ptb stamps
 

where the ptb stamps on the firewall done in paint or ink ??

Chick had some good info in his build thread on this on team camaro and there was a thread on crg also

Good thread right here: https://www.yenko.net/forum/showthread.php?t=143621

What about the orange or green colors

I couldnt get link to work but use search box on crg and type "pbt on los Angeles camaros", had 5 pages of discussion. Colors are tbought to be different shifts.

PBT quality control inspection stampings on the firewall were done ONLY at the Norwood plant. They were either orange or green in color.

Sal

Thread i mentioned had Jerry M say he had no documented L.A. built cars witb stamps

PTB was not needed at LOS because the body side and the chassis side of the plant were already merged into the General Motors Assembly Division (GMAD) operating model meaning GMAD operated as one company.

At Norwood the assembly operating model still relied on separate GM divisions to assemble cars. At Norwood Fisher body and Chevrolet were locked in a subcontractor/prime contractor relationship.

At times the relationship between Fisher and Chevrolet was openly Hostile and crossing between the two sides by personnel from either side was a negotiated business agreement.

PTB Stamps were part of the Fisher Body audit process to combat claims of damage to the coach after receipt by the chassis side at Chevrolet.

Damage claims by Chevrolet were cost reimbursable through GM and hurt Fisher Body's Profit margins.

I always wondered about this.Very good information.

Thanks!

Remember a post by John Hinckley about crossing through to the Fisher side to try and sort out a quality or scheduling issue face-to-face; just about triggered going to DEFCON 1......