First Gen dual exhaust hanger plates..

[69Z28-RS]

Ain't nuttin perfect, Ed..  but you did GUD... 

[RS Copo]

I can't quite get how to do multiple quotes,but BC Miller, the holes on the dr side frame rail behind the tire are not threaded.

They shouldn't be threaded. There should be two rivnuts inserted into the holes as shown in the picture above.

Ed,it is an Oct 67 car. I see the taping plate on the dr side ,next to the shock,on bottom side of the frame rail.I also see the holes in the same location on the pass side,but no taping plate installed.However, next to the shock on the pass side frame rail,facing out towards the tire, there  are two holes with a taping plate.
On the floors, forward of the rear end housing,there is a taping plate for a hanger on the dr side only. Just two holes on the pass side.

It's difficult to say what you originally had, but the holes with no rivnuts on the driver side "might" indicate dual exhaust. I was speaking to Troy last night and he said he's never seen ANY 67 (LA OR Norwood) with the rivnuts! And he's restored a ton of them. Even though the AIM states they were added in November of 1966, this doesn't mean they were actually placed in production on that date. The dates in the AIM are only reference dates when engineering submitted the change to the drawing department. It has nothing to do with the actual date the item was placed in production. Your car is an early production 68, so even by then the rivnuts may not have been implemented, I just don't have enough data points to say for certain.

Would it be possible to get some pictures? And I'm assuming your car ISN'T an SS or a Z28?

Ed

Ed, I'm not sure what my 68 started out as.It was a roller(barely) purchased in 2011 in Arizona and brought to MI.No A/C,BB hood springs,fenders drilled for SS and engine emblems.No interior.Did have a speedo with the car,that's it for gauges.A rear end installed to move it.It had no wiring
 or fuel system on it.I will take pics of it tomorrow and see if I can post them,or at least text them to you,if you wish.BTW,I think what I was referring to as taping plates might actually be threaded plates.You should be able to tell from the pictures.                                                                                                                                Dana

[bertfam]

Thanks Gary. I've always found the exhaust options on 67-69 Camaros to be VERY confusing. Single exhaust, N61 (67), N10 (67 & 68), NF2 (68 & 69), NC8 (69)... Just too many choices!!

Dana, what's the VIN? If it's in the database, we might have more info on it. And yes, by all means post some pictures.

And I got a little more info on the rivnut usage for 1967. Troy (Criscillis) stated he worked on a late 1967 (06B) LA Coupe that DIDN'T have the rivuts, and Bill (Glowacki) said he had a late 1967 (06E) Z28 that he's virtually certain DID have the rivnuts, so a little more data for us. Anyone with a 1967 Coupe (LA or Norwood) care to chime in, I'd welcome the input.

Ed

[dutch]

Sorry - Sounds like I really unknowingly opened up a 'can of worms'..

[69Z28-RS]

Sorry - Sounds like I really unknowingly opened up a 'can of worms'..

It's all good....    Sorting out a 'can of worms', or trying to, is our specialty here.. 

[bertfam]

Yes, it's actually enjoyable trying to unravel the mysteries!

And here's what we have so far for the Coupes:

1967 LA
Build Date  Rivnut?   Reference by
04B           No         Mike S
06B           No         Troy Criscillis

1967 NOR
Build date  Rivnut?   Referenced by
06E          Yes        Bill Glowacki

1968 LA
Build Date  Rivnut?   Reference by
02C          Yes        Paul

1968 NOR
Build Date  Rivnut?   Reference by


Let's add to this folks!
Ed

[1968RSZ28]

Let's add to this folks!

Ed

Ed, I just checked my 02C LA built '68 Z28...

Left (driver's) side = rivnuts (2)
Right (passenger's) side = threaded plate

Paul

[bertfam]

Thanks Paul. I was still able to edit my prior post and add your car to the above.

Ed

[68camaroz28]

Thanks Gary. I've always found the exhaust options on 67-69 Camaros to be VERY confusing. Single exhaust, N61 (67), N10 (67 & 68), NF2 (68 & 69), NC8 (69)... Just too many choices!!

Dana, what's the VIN? If it's in the database, we might have more info on it. And yes, by all means post some pictures.

And I got a little more info on the rivnut usage for 1967. Troy (Criscillis) stated he worked on a late 1967 (06B) LA Coupe that DIDN'T have the rivuts, and Bill (Glowacki) said he had a late 1967 (06E) Z28 that he's virtually certain DID have the rivnuts, so a little more data for us. Anyone with a 1967 Coupe (LA or Norwood) care to chime in, I'd welcome the input.

Ed

Hi Ed, this is a 67 NOR 06A base V8 with M20 and the left driver's side frame rail seems to have two dimples that would be drilled out or holes possibly covered by undercoat (lousy pic but you can see two dipples), and the right passenger side has what seems like threads in the frame rail only. This 67 is a YY velocity yellow car from the factory and was surprised how much yellow was under the exhaust hanger.

[bertfam]

Yes. that's what all cars with single exhaust should have. Dimples on the driver's side and the plate on the passenger's side.

Thanks
Ed

[Marty]

Just looked at my 1968 LOS 01C BB.

Passenger side: threaded plate
Driver's side: 4 holes, two are larger and looks like they might have had rivnuts in them but no longer there. Large holes are lower left and upper right locations.

Martin

[Jon Mello]

07B 1967 Z28 from the LOS plant, less than 50 cars from the end of production, has just got the unreinforced holes for sheetmetal screws as seen in the previously posted photo.

An 06D SS350 car from the LOS plant was also the same.

[bertfam]

Update:

1967 LA
Build Date  Rivnut?   Reference by
04B           No         Mike S
06B           No         Troy Criscillis
06D           No         Jon Mello
07B           No         Jon Mello

1967 NOR
Build date  Rivnut?   Referenced by
06E          Yes        Bill Glowacki

1968 LA
Build Date  Rivnut?   Reference by
01C          Probably  Martin Foltz
02C          Yes        Paul

1968 NOR
Build Date  Rivnut?   Reference by

Ed

[RS Copo]

My 10C, LA 68 driver side frame rail has the two holes matching Jon's picture in post#56.It also has the threaded plate on the underside of the same rail,next to the shock. The driver side floorboard has a threaded plate for a hanger.Passenger side has the threaded plate out behind the tire,nothing else.Two holes,but no plate on underside of rail next to the shock and what appear to be two holes in floorboard for a hanger, do not have a plate.
        Dana

[bertfam]

Update:

1967 LA
Build Date  Rivnut?   Reference by
04B           No         Mike S
06B           No         Troy Criscillis
06D           No         Jon Mello
07B           No         Jon Mello

1967 NOR
Build date  Rivnut?   Referenced by
06E          Yes        Bill Glowacki

1968 LA
Build Date  Rivnut?   Reference by
10C          No          Dana
01C          Probably  Martin Foltz
02C          Yes        Paul

1968 NOR
Build Date  Rivnut?   Reference by

Ed