67-69 Bumper Jack Design

[stovebolt]

Data from my 1968 two owner survivor:

Plant: NOR
Model Year: 68
Body Plate Build Date: 04A
Jack Mast Section: trapezoidal
Jack Base: no stampings
Mast Date Code: rivet, 8C

[ZLP955]

Thanks stovebolt!

[ZLP955]

Updated data:

Plant: LOS
Model Year: 69
Body Plate Build Date: 09D (1968)
Jack Mast Section: square
Jack Base: nothing stamped
Mast Date Code: mast, 8J

Plant: NOR
Model Year: 68
Body Plate Build Date: 04D
Jack Mast Section: trapezoidal
Jack Base: (to be confirmed)
Mast Date Code: rivet, 8D

Plant: NOR
Model Year: 69
Body Plate Build Date: 03B
Jack Mast Section: trapezoidal
Jack Base: U69
Mast Date Code: rivet, 9C

Plant: LOS
Model Year: 68
Body Plate Build Date: 02E
Jack Mast Section: square
Jack Base: nothing stamped
Mast Date Code: mast, 8B

Plant: NOR
Model Year: 69
Body Plate Build Date: 08E (1969)
Jack Mast Section: trapezoidal
Jack Base: nothing stamped
Mast Date Code: rivet, 9G
(Note: VE3 load rest)

Plant: NOR
Model Year: 69
Body Plate Build Date: 09C (1969)
Jack Mast Section: trapezoidal
Jack Base: U69
Mast Date Code: rivet, 9H

Plant: NOR
Model Year: 68
Body Plate Build Date: unknown
Jack Mast Section: trapezoidal
Jack Base: unknown
Mast Date Code: rivet, 8D

Plant: LOS
Model Year: 68
Body Plate Build Date: 02C
Jack Mast Section: square
Jack Base: nothing stamped
Mast Date Code: mast, 8 1

Plant: NOR
Model Year: 69
Body Plate Build Date: 11D (1968)
Jack Mast Section: trapezoidal
Jack Base: U69
Mast Date Code: rivet, 8L
(note: convertible, space saver)

Plant: NOR
Model Year: 68
Body Plate Build Date: 04A
Jack Mast Section: trapezoidal
Jack Base: no stampings
Mast Date Code: rivet, 8C

[KurtS]

I find that hard to read/interpret.
Is this better? Organized by date and plant and on one-line:
68
LOS 02C - square, 81 on the mast.  Base - blank.
LOS 02E - square, 8B on the mast.  Base - blank.

NOR 04A - trapezoid, 8C on rivet.  Base - blank.
NOR 04D - trapezoid, 8D on rivet.  Base tbd.
NOR  ? ? - trapezoid, 8D on rivet.  Base n/a.

69:
LOS 09D - square, 8J on the mast.  Base - blank.

NOR 11D - trapezoid, 8L on rivet.  Base U69.  (note: convertible, space saver)
NOR 03B - trapezoid, 9C on rivet.  Base U69.
NOR 08E - trapezoid, 9G on rivet.  Base - blank. VE3 load rest
NOR 09C - trapezoid, 9H on rivet.  Base U69.

[1968RSZ28]

I find that hard to read/interpret.
Is this better? Organized by date and plant and on one-line:

Yes, much better. 

In seconds you can see that so far all the LOS cars have square mast that are dated on the mast, while the NOR cars have trapezoid mast with dates on the rivets.  Also, so far all the LOS cars have blank bases.

Paul

[69Z28-RS]

Very good Kurt!   We knew there was a reason you were boss...

[ZLP955]

Thanks, I am working on the spreadsheet so hadn't sorted the data yet. But maybe that format is clear enough, no point in confusing things unnecessarily.

[x66 714]

Here's more jack information from a friends car. LA built 1969, 01b. Square, can only read 8 on the mast. No stampings on anything else...Joe

[My68SS]

I'm following this thread with much interest.
I assume the correct length for all 67 - 69 jacks is 32 1/2"?
Also, what about hooks that are stamped on the face side ilo the underside, like in this post, or is face side stamping re-pop?
http://www.camaros.org/forum/index.php?topic=3681.msg24131#msg24131

[Mike S]

Here are the jacks from my two 67's. No dates on the rivets but it does exist on the masts.
Interesting how the LOS and NOR differ. The LOS car mast looks to be zinc and the NOR mast looks to be zinc dichromite.

Mike

[ZLP955]

Thanks Mike. Now we have some 67 data:

67
LOS 04B - square, 7D on the mast. Base - blank

NOR 05 - trapezoid, no date on rivet. Base U

68
LOS 02C - square, 81 on the mast.  Base - blank.
LOS 02E - square, 8B on the mast.  Base - blank.

NOR 04A - trapezoid, 8C on rivet.  Base - blank.
NOR 04D - trapezoid, 8D on rivet.  Base tbd.
NOR  ? ? - trapezoid, 8D on rivet.  Base n/a.

69:
LOS 09D - square, 8J on the mast.  Base - blank.

NOR 11D - trapezoid, 8L on rivet.  Base U69.  (note: convertible, space saver)
NOR 03B - trapezoid, 9C on rivet.  Base U69.
NOR 08E - trapezoid, 9G on rivet.  Base - blank. VE3 load rest
NOR 09C - trapezoid, 9H on rivet.  Base U69.

[Mike S]

Hi Tim,
   The only date on the 05B NOR is on the mast itself and that appears to be CC07.
I don't know if the C is a double stamp to account for it appearing twice.

Mike

[My68SS]

Interesting difference in the stamping on the load rest.
LOS - 'Camaro 1967' on the same line
NOR - 'Camaro' on one line with '1967 UN' on another line
Both of them stamped on the face side.

Not sure if that CC07 would qualify as a date code, can't really make sense of it, even if the C is a double, though a [maybe late] C is not too far from 05B, just don't understand the 0 in 07
So technically, not a case of 'no date on rivet', as that type of dimpled rivet head doesn't lend itself to having anything stamped on it.
Seems the NOR jack supplier at some stage changed the rivet to a flat head type and started stamping the date code there.

[ZLP955]

Rob, I have seen other 67 NOR jacks that have a date stamp on the rivet as subsequent years, so maybe this was yet another supplier working to a similar trapezoid design? Let's try and get more 67 info.

[ZLP955]

Update with minor corrections to previous post:

67
LOS 04B - square, 7D on the mast. Base - blank

NOR 05B - trapezoid, no date on rivet. Mast stamped CC07. Base U

68
LOS 02C - square, 81 on the mast.  Base - blank.
LOS 02E - square, 8B on the mast.  Base - blank.

NOR 04A - trapezoid, 8C on rivet.  Base - blank.
NOR 04D - trapezoid, 8D on rivet.  Base tbd.
NOR  ? ? - trapezoid, 8D on rivet.  Base n/a.

69:
LOS 09D - square, 8J on the mast.  Base - blank.
LOS 01B - square, 8 on the mast.   Base - blank.

NOR 11D - trapezoid, 8L on rivet.  Base U69.  (note: convertible, space saver)
NOR 03B - trapezoid, 9C on rivet.  Base U69.
NOR 08E - trapezoid, 9G on rivet.  Base - blank. VE3 load rest
NOR 09C - trapezoid, 9H on rivet.  Base U69.