Original 67-69 Camaro driveshafts - information requested about your car

[copo]

1969
Norwood
06A-Month and week of vehicle assembly
427-Engine
M22-Transmission
49.5-Driveshaft length (measured center of u joint to center of u joint                                                                                                   
3790024- Driveshaft casting number
strap and bolts-Type of attachment to pinion yoke.
BE 0610 G2- Code stamped on front of passenger side axle tube.
N/A-Paint stripes
in-line-Position of the u-joint flanges on each end are in line.

[67 RS Ragtop]

  original driveshaft
  1967
  LOS
  10B
  L30 / 327-275hp
  Powerglide
  49.96 inches
  orange then white stripe (front to back)
  u-bolt attachment
  couldn't find cstg dates - will look harder
  u-joints are clocked approx 30 degrees
  will forward pics later showing stripe placement and u-joint offset.

[rich69rs]

1969
Norwood
06A-Month and week of vehicle assembly
427-Engine
M22-Transmission
in-line-Position of the u-joint flanges on each end are in line.

The most important question to be answered in any of this discussion (at least for 1969 IMO) is why the vast majority of driveshafts had offset u-joints and yet some of the more powerful engine / transmission options had the u-joints in phase.

From a pureley mechanical engineering perspective, in phase u-joints are correct.  

In phase u-joints will theoretically maintain the same anglular relationship with respect to the horizontal at both ends of the driveshaft.  If everything else works as designed, maintaining this constant angualr relationship will negate the constantaly changing angular velocity at one end of the driveshafti vs. the opposite end.  

Out of phase u-joints, by definition, will not maintaitn the same angular relationship at both ends of the driveshaft......why GM / Chevy did this is one of the great mysteries of life.

[67 RS Ragtop]

diff axle stamp PA0818G, see pics of stripe and phazing
stripes measured back fron center of u-joint cap at front of shaft

[bcmiller]

The most important question to be answered in any of this discussion (at least for 1969 IMO) is why the vast majority of driveshafts had offset u-joints and yet some of the more powerful engine / transmission options had the u-joints in phase.

Rich I appreciate your input - but that is not why I started this thread.  

That question has been tossed around for years and years.  As for WHY?, I don't think we will ever find an answer to that question.  

[68camaroz28]

Found two white paint marks when the other end of the driveshaft was soaked. The dimension (tape measure in pic) was from the centerline of the rear universal.


Both welded on Yokes are part # 3790024 and both seem to have a "318-2" beside the castings chevrolet embossed emblem. Notice the orange paint also.

[bcmiller]

OK, I need to clarfiy something. The number that are on the yokes are not casting numbers, those are forging numbers.  From what I have been able to find out so far, they are not Camaro specific, so they may not be of much use in this research.

But thanks for all of the information so far.  Any PLEASE keep posting!  Especially any 67 or 68 big block cars.

[bertfam]

Ok Bryon. I finally got a chance to get under the car so here you go:

Year of car - 1968
Norwood or Los Angeles car - Los Angeles
Month and week of vehicle assembly - 05D
Engine - Believed to be an L89 but original block MIA
Transmission - M21 (Not original)
Driveshaft length (measured center of u joint to center of u joint) - 49.75" (plus or minus)
Driveshaft casting number - Unknown
Type of attachment to pinion yoke - U bolts
Code stamped on front of passenger side axle tube - BS0506G2 (3.31 Posi) and D168 casting date
Paint stripes and a picture (if possible) - White ?? and Orange?? (see picture)
Position of the u-joint flanges on each end - 30 degrees

My axle isn't original to the car but is correctly dated to the 05D build. Also note that there's some kind of writing in yellow (see 2nd picture below). I can't make out anything but an "M" so I have no idea if it's original or not, or what it says.

Ed

[bcmiller]

Thanks Ed.  It does look like white and orange stripes to me.

[IZRSSS]

Crawled underneath it Bryon. Here you go...

1969
Los Angeles
12A Ist wk of Dec. 68
350 L48
M38 Transmission
49.50"
U Bolt
BL1127G2 3.07:1, Non-Posi, 12 Bolt, Nov. 27, Detroit Gear & Axle Plant
30 degrees

Sorry, wasn't able to help with the color bands. As you can see it was painted over.

[bcmiller]

Thanks Marty. 

[bcmiller]

Any original 67 or 68 big block TH400 cars out there???

[bcmiller]

Anybody else want to post - please.

[Paul68RS/Z28]

68 Z28
04D-NOR
Original Drive-Train
49.50"  with 30 degree on the U-joints.
U-bolts.
What looks like a white stripe at 13.5", couldn't make out an orange one.

[bcmiller]

Thanks Paul.

I looked at one yesterday.  49.5 inches center of u joint to center of u joint.
The owner was about 90 percent sure that it was from a 1969 Camaro TH400
car that he junked out after it was wrecked about 30 years ago.
It had what appeared to be an original TH400 yoke on it.  The u joints were in line.  
I could not find any stripes on it.

Fixed typo