Messages

76

Original Cars and Details / Re: 1969 Z28 time capsule

« on: January 25, 2024, 09:36:42 PM »

A lot of cars were “restored” in the early and mid 80s with original type paint. A buddy (who passed away several years ago) could duplicate factory paint to the point most people could not tell the difference.

77

Original Cars and Details / Re: 1969 Z28 time capsule

« on: January 24, 2024, 06:55:38 PM »

Very nice car, but I think I agree on the repaint. I would have to see in person to say just how much if any paint was original.

The original post said 90 percent of the paint was original.

The documentation is great.

If possible it would be good to see some other details like trunk splatter paint, reverse lockout rod area for the shifter, radiator tag, transmission and axle stamped codes.

78

Original Cars and Details / Re: 1969 Z28 time capsule

« on: January 23, 2024, 04:45:50 PM »

Thanks for those. If you can show the transition between the orange at the top of the firewall and the blackout on the firewall that would be good.

It is OK if the bellhousing was repainted.  Post pics of that area anyway when you can.  The shifter area, rods etc is often messed with. Let's see if this one is still original.

79

Original Cars and Details / Re: 1969 Z28 time capsule

« on: January 23, 2024, 02:53:30 AM »

If the paint on the back of the car is original, please show some pics of the rear stripes and spoiler.

If the paint on the top of the firewall and cowl is original, please show that area, including the stripes.

Pics of the transmission, shifter, bellhousing and driveshaft (if any colored stripes) would be good.

Thanks! 

80

Original Cars and Details / Re: 1969 Z28 time capsule

« on: January 23, 2024, 02:44:01 AM »

Moving it to the other section.

81

Original Cars and Details / Re: 1969 Z28 time capsule

« on: January 21, 2024, 10:51:44 PM »

If we can more pics of this car we will consider moving it to the Original Cars and Details section.

82

Original Cars and Details / Re: 1969 Z28 time capsule

« on: January 21, 2024, 07:53:41 PM »

For this car, Build sheet = Chassis Broadcast Copy

Not a true “build sheet” like we think of for some cars but it does show a lot of the broadcast codes.

83

Original Cars and Details / Re: Yard find 1969 Z/28 RS

« on: January 19, 2024, 11:26:02 PM »

I suspect the engine pad got that paint after it left the vehicle assembly plant.

84

General Discussion / Re: 1969 driveshafts

« on: January 19, 2024, 08:31:36 PM »

I am not trying to figure out why they were offset or inline, I am only trying to find out what is the correct driveshaft for a 396 4 speed 69 Camaro. I emailed Jerry M but he is in Scottsdale for 2 more weeks. He said he would reach out to me when he returns.
The LEGENDS book on pg 59 says all BB cars came with inline driveshafts weather it is a 4 speed or Auto 400. The colors according to LEGENDS do not match the CRG driveshaft chart either. I feel that the CRG offers more detailed info than 1 sentance on pg 59 from the Legends book.
Does anyone have proof in regards to offset vs inline?? Or is the section in the CRG under driveshafts all there is to offer?
If so what would you do, follow the CRG or listen to the LEGENDS book? I am stumped.

Send me an email at bcm66@cox.net with what it shows for driveshaft stripe colors.

I contacted JM.

85

Original Cars and Details / Re: Yard find 1969 Z/28 RS

« on: January 19, 2024, 05:23:01 PM »

Thanks!

86

General Discussion / Re: 1969 driveshafts

« on: January 19, 2024, 03:59:17 PM »

.

I agree - there could have been a vibration problem in the drive train.  Offsetting the yokes to “fix” a drivetrain vibration problem would have been an inexpensive course of action. 

If that was the case, then nothing was “fixed” - just band aided - with what was possibly a drivetrain vibration issue shifted to something else.  The drivetrain only had to survive long enough to finish a Trans Am race or last past the warranty period.

It would be insightful to know - over the years how may transmissions (aluminum cases) and rear ends have failed due to the induced stresses and torsional vibrations originating from offset propeller shaft yokes operating under heavy acceleration, load, and higher rpm’s.

Just because Chevy did it doesn’t make it golden.

If you guys have time, read the full report.

We researched this for over 10 years.

I have read the full report.  It is a very good report for documenting what Chevy did.  However, there is nothing in the report that states why, gives a reason, or an engineering explanation for why the SB driveshafts had the yokes clocked at 32 degrees.

And by the way, I have been researching mechanical engineering principles since 1971 (53 yrs) and have been a registered professional mechanical engineer since 1980.  I have more than a basic understanding of how a propeller shaft operates.

Richard

We have gone round and round with this. The horse was dead 10 years ago.

I have no way of getting into the minds of engineers that did this 50+ years ago.  If you have that capability, go ahead and find out.

87

General Discussion / Re: 1969 driveshafts

« on: January 19, 2024, 03:56:44 PM »

I should of ststed that my driveshaft in my 04C car if OFFSET with original spot welded weights on the tube of the driveshaft.

Post pics of your driveshaft and any stripes it may have have.

Who is listed as the head judge for Legends?  I may have to talk with Jerry M.

88

General Discussion / Re: 1969 driveshafts

« on: January 19, 2024, 03:28:13 AM »

If you guys have time, read the full report.

We researched this for over 10 years.

89

Research Topics & Reports / Re: Pics to finish up the hood report

« on: January 18, 2024, 04:56:55 PM »

Here is the D bumper pics.  Best I can do with my old phone cam.

The second pic will work. Thanks!

90

General Discussion / Re: New pictures

« on: January 18, 2024, 04:18:04 AM »

OK - I was mainly talking exterior.