P-T-B

[LITTLE TOMMIE]

i have added a photo of a fire wall that has the original PTB stamping on it. i hope the photo is clear enough to see. it has the P and B in green and the T in orange and they are the factory stampings. the 69 z28 is a 10 D of 69 built car

[68l30]

Thanks,Mine is just the opposite.Green "T" .....07E 68..

Steve

[Mark_C]

More and more "original" cars are showing up with two different color inspection stamps. I'm begining to think that instead of night and day shift, the colors indicate the results of the inspection. Green being everything was OK and Red/orange meaning somethin needed to be fixed. I've only seen one peice of an orange "B" on my firewall as the firewall had been painted black at least once before I got it. There was a peice of sealant stuck to the firewall about the size of a quarter and when I pulled it off one day, there was a section of the "B" behind it.

The "T" on your car could be under the heater duct, since the stamps were put on by Fisher just before the rear half of the body was sent to Chevrolet, and at that point neither the front fenders or the blower motor duct was put on. It also could have been painted over if GM needed to respray the firewall due to body color overspray. Sounds like your car spent some time in the GM paint repair booth.

Check out this link for the Norwood assembly Process:

CRG Norwood Assembly Process.

[bkhpah]

I have also seen original cars with two color inspection marks. I once did a Pacer that was original with two colors. Restored it that way, and even had a negative article written about the firewall in a Camaro only magazine. The author didn't do his homework and got bombed with original pictures from people that sent him their info. He was of course wrong, but never made an effort to correct his mistake. That happens all the time...BKH

[njsteve]

My 02D built Z11 had the orange "P" and "B" behind the A/C evaporator housing with no overspray. The "T" was below the firewall data plate, again with no eveidence of overspray. The remains of the crayon marking "C60" and a "23" were visible under the blackout firewall paint. I can scan the photos in and try to link them here if you need them. Happy Holidays, NJSteve

[Unreal]

I had PTB under my evaporator box, as well. I didn't have the foresight to photograph it, but I'm not going to remove it now. [img]/ubbthreads/images/graemlins/smile.gif[/img]