Author Topic: 67-69 Bumper Jack Design  (Read 73513 times)

My68SS

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Re: 67-69 Bumper Jack Design
« Reply #45 on: May 02, 2015, 12:12:34 PM »
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.

Yes, we need more 67 examples either side of 05, both NOR and LOS

On the subject of suppliers, I have read posts by both John and Kurt that suggest there were multiple base suppliers, but not necessarily multiple jack suppliers.

In fact, it may be that there was only the two jack suppliers, one punching out the trapezoidal design that went to NOR and the other punching out the square design that went to LOS, neither of them making the base.
It may also be that considering the safety requirements for such a piece of equipment, that a plant [and the design] needed to be 'certified' in some form or other.
Minimal tooling/assembly is required to punch out bases, there is a lot more tooling and assembly required to punch out masts and ratchets that also conform to a safety standard.
Rob
1968 12C SS
L34/M40
12 bolt posi 3.55

ZLP955

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Re: 67-69 Bumper Jack Design
« Reply #46 on: May 03, 2015, 12:20:30 AM »
Also read that about the bases. Many other GM models had further different jack designs (for example some Chevelles used a T-section mast and base) and there are subtle differences between otherwise similar mast designs, such as the mast length, and the orientation of the notch in the base recess.
I assumed that these differences were to avoid interchanging model-specific parts over the years, but from a design, manufacture (and now restoration) point of view, it would've been far simpler to have one mast, base and mechanism design, and just have a load rest hook to suit each model. Maybe the accountants intervened and argued cost savings by making each jack model-specific rather than generic!
Tim in Australia.
1969 04A Van Nuys Z/28. Cortez Silver, Dark Blue interior, VE3, Z21, Z23, D55/U17, D80, flat hood.
Sold at Clippinger Chevrolet in Covina, CA.
AHRA Formula Stock at Lions Dragstrip, NHRA E/MP at Pomona Raceway

x66 714

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Re: 67-69 Bumper Jack Design
« Reply #47 on: May 04, 2015, 03:18:07 PM »
Were the colors of the base & mechanism the same from both plants? Thanks, 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

69 Zee

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Re: 67-69 Bumper Jack Design
« Reply #48 on: May 23, 2015, 10:47:45 PM »
Got a third data point from looking back through Darrell's thread on his barn find dusk blue X77:

Plant: NOR
Model Year: 69
Body Plate Build Date: 03B
Jack Mast Section: trapezoidal
Jack Base: U69
Mast Date Code: rivet, 9C
You beat me to it Tim... lol  :) 
« Last Edit: May 23, 2015, 11:08:42 PM by 69 Zee »
Darrell
'69 Camaro Z/28: 03B NOR X77 Dusk Blue, white top, all orig, Under construction
'69 Firebird all original 350 all power w/ac
'70 Plymouth Superbird: One owner, Limelight green, 45K miles, all original U code

KurtS

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Re: 67-69 Bumper Jack Design
« Reply #49 on: October 31, 2016, 04:46:53 PM »
Hmmm, looks like I never added this pic to the discussion, though I've posted it before in other discussions.
Kurt S
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Re: 67-69 Bumper Jack Design
« Reply #50 on: October 31, 2016, 09:02:08 PM »
Kurt that's a great comparison; the 3rd base from the left in your picture looks to me very much like the one in the trunk of the 27,000mi unrestored HO car. Very interesting!
Tim in Australia.
1969 04A Van Nuys Z/28. Cortez Silver, Dark Blue interior, VE3, Z21, Z23, D55/U17, D80, flat hood.
Sold at Clippinger Chevrolet in Covina, CA.
AHRA Formula Stock at Lions Dragstrip, NHRA E/MP at Pomona Raceway

ko-lek-tor

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Re: 67-69 Bumper Jack Design
« Reply #51 on: October 31, 2016, 09:14:34 PM »
Glad you posted that Kurt. I was about to throw away several bases I deemed non-Camaro and not sure what their application, except that they were from the era and gray.
Bentley to friends :1969 SS/RS 396 owned 79
1969 SS 350 (sold)
1969 D.H.COPO replica 4spd. owned since 85
1967 302 4 spd 5.13

x66 714

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Re: 67-69 Bumper Jack Design
« Reply #52 on: November 01, 2016, 12:06:35 AM »
My 08E of 1969 has the type that is 3rd from the left. It's also VE3 which probably has nothing to do with the jack assy....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

KurtS

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Re: 67-69 Bumper Jack Design
« Reply #53 on: November 04, 2016, 03:57:10 AM »
Note that the base with the U69 stamped on it isn't shown....
Kurt S
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BULLITT65

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Re: 67-69 Bumper Jack Design
« Reply #54 on: November 04, 2016, 06:41:13 AM »
My 08C car looks like the one in the first pic, but I thought it did have a U69 on it, maybe not? Another thing to add to my list to check.
1969 garnet red Z/28 46k mile unrestored X77
-Looking for 3192477 (front) spiral shocks 3192851 (rear)
-Looking for an original LOF soft ray windshield
-Looking for original Delco side post negative battery cable part # 6297651AV

x66 714

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Re: 67-69 Bumper Jack Design
« Reply #55 on: November 04, 2016, 11:20:26 AM »
Why is that Kurt?
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

KurtS

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Re: 67-69 Bumper Jack Design
« Reply #56 on: November 07, 2016, 06:08:26 AM »
Umm, cause I didn't have a picture of one when I made that group up.....
Kurt S
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x66 714

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Re: 67-69 Bumper Jack Design
« Reply #57 on: November 07, 2016, 11:00:55 AM »
I see. I thought you were trying to tell us something...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

hihorse

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Re: 67-69 Bumper Jack Design
« Reply #58 on: March 31, 2017, 10:31:28 PM »
68 Jack,  no date , measures 32.5"

hihorse

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Re: 67-69 Bumper Jack Design
« Reply #59 on: March 31, 2017, 10:35:53 PM »
other side