Author Topic: 67-69 Bumper Jack Design  (Read 19744 times)

ZLP955

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Re: 67-69 Bumper Jack Design
« Reply #15 on: April 01, 2015, 06:13:57 AM »
Thanks Joe!
Tim - 04A VN '69 z/28 69-69 715 ex-E/MP

69Z28-RS

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Re: 67-69 Bumper Jack Design
« Reply #16 on: April 02, 2015, 02:52:40 AM »
NOR  (my current '69 Z28)
1969
09C 1969
trapezoidal
U69 on base
rivet 9H
curved hook

the following is for a '68 Z28 I don't own any longer, and don't know the build month (but I have the jack still)
NOR
1968
rivet  8D
trapezoidal
'pin' hook
Gary W / 09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe, '70 Mach I 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

ZLP955

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Re: 67-69 Bumper Jack Design
« Reply #17 on: April 03, 2015, 12:05:28 AM »
Los 1968 02E square nothing on base 8B
Joe, for the 68 LOS car is the date code of 8B on the rivet or on the square mast?
Thanks!
Tim - 04A VN '69 z/28 69-69 715 ex-E/MP

ZLP955

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Re: 67-69 Bumper Jack Design
« Reply #18 on: April 03, 2015, 12:06:44 AM »
OK here's the contributions so far, in order received. When I get the spreadsheet going, it can be sorted and filtered by assembly plant, model year, build date etc.

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: 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
Tim - 04A VN '69 z/28 69-69 715 ex-E/MP

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Re: 67-69 Bumper Jack Design
« Reply #19 on: April 03, 2015, 03:01:06 AM »
The 8 B is stamped on the mast for the 68 Z/28....Joe
See America's First, Chevrolet

1968 Z/28 Corvette Bronze. Black Hounds Tooth. 02E Los Angeles born 3/13/1968 pnt OO. Purchased March 1976
1969 SS396 Yellow/Yellow 08E Norwood born 8/28/1969 pnt 76E. Purchased April 1981

ZLP955

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Re: 67-69 Bumper Jack Design
« Reply #20 on: April 03, 2015, 08:29:30 AM »
Great, thanks Joe! I'll address that in the next update.
Tim - 04A VN '69 z/28 69-69 715 ex-E/MP

69Z28-RS

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Re: 67-69 Bumper Jack Design
« Reply #21 on: April 03, 2015, 12:30:38 PM »
The 8 B is stamped on the mast for the 68 Z/28....Joe

Can you show a pix of that stamping on the mast, Joe??
Gary W / 09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe, '70 Mach I 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

1968RSZ28

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Re: 67-69 Bumper Jack Design
« Reply #22 on: April 03, 2015, 04:09:32 PM »
Tim, here's the stats on the jack in my '68 Z/28...

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

Paul

Boston14

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Re: 67-69 Bumper Jack Design
« Reply #23 on: April 03, 2015, 08:50:57 PM »
Tim, here's the info on the jack for my 1969 SS/RS Convertible w/Space Saver Spare

Plant: NOR
Model Year: 69
Body Plate Build Date:11D(1968)
Jack Mast Section: trapezoidal
Jack Base: U69
Mast Date Code: rivet, 8L
boston14

1969 SS/RS 350 Convertible
Dover White with Black Top and D90 stripe, Red Standard Interior

ZLP955

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Re: 67-69 Bumper Jack Design
« Reply #24 on: April 03, 2015, 10:38:46 PM »
Can you show a pix of that stamping on the mast, Joe??
Gary, it's from a different LA car, but the second picture at the start of this thread is an '8J' date stamp on a square mast.
Tim - 04A VN '69 z/28 69-69 715 ex-E/MP

ZLP955

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Re: 67-69 Bumper Jack Design
« Reply #25 on: April 03, 2015, 10:40:14 PM »
Thanks for adding your data Paul and Boston14, I'll update the list shortly.
Tim - 04A VN '69 z/28 69-69 715 ex-E/MP

ZLP955

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Re: 67-69 Bumper Jack Design
« Reply #26 on: April 04, 2015, 12:47:40 AM »
Latest 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)
Tim - 04A VN '69 z/28 69-69 715 ex-E/MP

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Re: 67-69 Bumper Jack Design
« Reply #27 on: April 04, 2015, 02:00:32 AM »
My camera is at a different location. I will say it looks like the second picture except the date is different. They're spread apart just like picture 2. I will see if I can get a picture soon...Joe
See America's First, Chevrolet

1968 Z/28 Corvette Bronze. Black Hounds Tooth. 02E Los Angeles born 3/13/1968 pnt OO. Purchased March 1976
1969 SS396 Yellow/Yellow 08E Norwood born 8/28/1969 pnt 76E. Purchased April 1981

69Z28-RS

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Re: 67-69 Bumper Jack Design
« Reply #28 on: April 04, 2015, 03:53:29 AM »
ah..  Thanks Joe..  I've never seen a mast that was dated before, and I totally missed it the first time..  but reading your specific (go back to photo 2).. I found it and now I see and understand.   Is that date code only on the square type masts, or does someone have a trapezoidal mast with such a date code?
Gary W / 09C 69Z28-RS, 72 B 720 cowl console rosewood tint
69 Corvette convertible, silver/black 350 hp,
60 Corvette white/red, 72 Corvette coupe, '70 Mach I 
90 ZR1 red/red #246, 90 ZR1 white/gray #2466
72 El Camino, '55-'56-'57 Nomads, '55-'57 B/A Sedan

ZLP955

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Re: 67-69 Bumper Jack Design
« Reply #29 on: April 04, 2015, 08:56:48 AM »
Gary, very early days but from the data so far, the NOR cars have trapezoidal masts with date stamped rivets, and the LA cars have square masts with the date stamp on the mast itself. Very interested to see if this is backed up by other owners, but we need many many more contributors.
Tim - 04A VN '69 z/28 69-69 715 ex-E/MP