Author Topic: 74 Eldorado engine bay support braces  (Read 289 times)

Offline danjarrett1

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74 Eldorado engine bay support braces
« on: January 27, 2018, 06:42:03 PM »
While perusing numerous online pictures of early 70’s Eldorado’s, I have noticed that some of them have, what appear to be, structural support tubular braces that run diagonally from the top of the wheel well to center of the firewall in the engine bay. My 74 Eldorado's convertible does not have them, neither are there provisions, that I can detect, for them. I’m curious if mine were removed and never reinstalled? Or, were the braces optional?
1974 Cadillac Eldorado convertible
2007 Cadillac Escalade
1980 Cadillac Seville “Bustleback”

Offline chrisntam

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Re: 74 Eldorado engine bay support braces
« Reply #1 on: January 27, 2018, 08:50:34 PM »
I had heard the convertibles did not get them but closed cars did.  Don't know the logic on that one, you'd figure it'd be the other around.

See if that's the case on the one's you look at and let us know what you find.
1970 Deville Convertible  MTS 507
Dallas, Texas

Offline Mike Josephic CLC #3877

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Re: 74 Eldorado engine bay support braces
« Reply #2 on: January 27, 2018, 09:04:47 PM »
My 1973 Eldorado coupe has them.  They were not an
option and I believe your car should have them also. 
Check the tops of the wheel wells under the hood for
screw holes -- those should be easy to spot.

Mike
1955 Cadillac Eldorado
1973 Cadillac Eldorado
1995 Cadillac Seville
2004 Escalade
1997 GMC Suburban 4X4, 454 engine, 3/4 ton
custom built by Santa Fe in Evansville, IN
2011 Buick Lucerne CX
-------------------------------------
CLCMRC Museum Benefactor #38
Past: VP International Affiliates, Museum Board Director, President / Director Pittsburgh Region

Offline danjarrett1

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Re: 74 Eldorado engine bay support braces
« Reply #3 on: January 27, 2018, 10:00:06 PM »
Mike, as I mentioned, there are no provisions for braces, no empty holes on the top of the wheel wells, no empty receptacles on the firewall..it is as if they never were there! That’s why it’s a mystery. Can’t imagine that the convertibles were exempt but I can find no evidence that my car was ever equipped with them.
1974 Cadillac Eldorado convertible
2007 Cadillac Escalade
1980 Cadillac Seville “Bustleback”

Offline danjarrett1

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Re: 74 Eldorado engine bay support braces
« Reply #4 on: January 27, 2018, 10:11:57 PM »
Did a Google Image search on 74eldorado engines, none of the 74models depicted had the braces or struts! I saw the braces  In 71-73 models, but no braces the on 74’s, assume they quit using them after 73 becuase a subsequent search on 75-77 models showed the engine bay sans braces! Guess GM firgurered they didn’t need them any more
1974 Cadillac Eldorado convertible
2007 Cadillac Escalade
1980 Cadillac Seville “Bustleback”

Offline The Tassie Devil(le)

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Re: 74 Eldorado engine bay support braces
« Reply #5 on: January 27, 2018, 10:47:54 PM »
Maybe the braces made the front ends too stiff, which in turn could have been a compromise with regards to the crash collapsing ability of the front end?

Bruce. >:D
'72 Eldorado Convertible (LHD)
'70 Ranchero Squire (RHD)
'74 Chris Craft Gull Wing (SH)
'02 VX Series II Holden Commodore SS Sedan
(Past President Modified Chapter)

Offline 76eldo

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Re: 74 Eldorado engine bay support braces
« Reply #6 on: January 27, 2018, 11:25:27 PM »
As puzzling as it is, the closed cars have these braces and the convertibles do not.  Same on my 60 convertible and 70 convertible. Not there on my 76 either. 

Seems backwards but GM didn't spend a nickel on anything that wasn't needed but this never made sense to me.

Brian
Brian Rachlin
Huntingdon Valley, Pa
CLC # 22443

I prefer email's not PM's   rachlin@comcast.net

1960 62 Series Convertible with factory Tri Power
1960 Eldorado Seville
1970 DeVille Convertible
1970 Eldorado
1976 Eldorado Convertible
1980 Eldorado Hess & Eisenhardt Convertible
1981 Eldorado Hess & Eisenhardt Convertible
1985 Eldorado ASC Biarritz Convertible
2007 DTS
2012 CTS Coupe
2017 CT5

Offline The Tassie Devil(le)

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Re: 74 Eldorado engine bay support braces
« Reply #7 on: January 28, 2018, 12:57:16 AM »
My '60 CDV didn't have the braces, but a friends' '60 Convertible does.

Bruce. >:D
'72 Eldorado Convertible (LHD)
'70 Ranchero Squire (RHD)
'74 Chris Craft Gull Wing (SH)
'02 VX Series II Holden Commodore SS Sedan
(Past President Modified Chapter)

Offline DeVille68

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Re: 74 Eldorado engine bay support braces
« Reply #8 on: January 28, 2018, 01:56:41 AM »
My 68 DeVille Convertible did not have those braces, but had all the holes and brackets. So if you drove over a bumpy road you could see the car flex by the amount the fenders would move and shake.
I then installed the two braces and the car or at least the body was much stiffer.
I doubt that it drives better or corners flatter, the fender just moves more in sync with the rest of the body.
1968 Cadillac DeVille Convertible (silver pine green)

Offline Roger Zimmermann

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Re: 74 Eldorado engine bay support braces
« Reply #9 on: January 28, 2018, 02:43:31 AM »
Have a look in that attached listing....There must be a reason why convertibles had no struts or different ones while closed cars had them...
« Last Edit: January 28, 2018, 02:45:12 AM by Roger Zimmermann »
1956 Sedan de Ville (sold)
1956 Eldorado Biarritz
1957 Eldorado Brougham
1972 Coupe de Ville (not yet arrived)
2011 DTS
CLCMRC benefactor #101

Offline DanishEldoradoFan

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  • Name: Niels Jørgen Pedersen
Re: 74 Eldorado engine bay support braces
« Reply #10 on: January 28, 2018, 03:47:39 AM »
My 72 Eldorado Convertible has these braces, and is "born" with them.
Niels, Denmark

Offline Roger Zimmermann

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Re: 74 Eldorado engine bay support braces
« Reply #11 on: January 28, 2018, 04:08:46 AM »
Your convertible should have them, according to the listing above. These struts are the same as closed coupes with radial tires while closed coupes with bias ply tires have different struts.
1956 Sedan de Ville (sold)
1956 Eldorado Biarritz
1957 Eldorado Brougham
1972 Coupe de Ville (not yet arrived)
2011 DTS
CLCMRC benefactor #101

Offline andysarcade

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  • Name: Andrew Welburn
Re: 74 Eldorado engine bay support braces
« Reply #12 on: February 02, 2018, 10:30:38 AM »
My '74 Eldo convertible does not have them, no mounts for them either. None of the 74 Eldo's I've been looking at online recently have them...
1974 Eldorado Convertible

Offline danjarrett1

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Re: 74 Eldorado engine bay support braces
« Reply #13 on: February 02, 2018, 10:23:57 PM »
Thanks for confirming that!!  Don’t know why they discontinued it but I’m sure the engineers figured it out
1974 Cadillac Eldorado convertible
2007 Cadillac Escalade
1980 Cadillac Seville “Bustleback”

Offline cadillacmike68

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Re: 74 Eldorado engine bay support braces
« Reply #14 on: February 03, 2018, 01:03:50 PM »
It was probably a chassis change underneath that eliminated the need for them. My 1968 DVC didn't have them, but it has the holes and the studs sticking up from the fenders, so I added a pair. Now I need to paint them because they look ratty compared to the rest of the engine bay.

If your 60s convertible the optional Level Control, you Had to have them to hold the ridiculous vacuum driven pump for the rear shocks!
Regards,
"Cadillac" Mike
Current:
1968 DeVille Convertible
1996 Fleetwood Brougham
2009 STS NorthStar Platinum ed RWD
2011 CTS PRemiun ed Sedan RWD
Past:
2008 CTS Premium ed Sedan AWD
2005 CTS Hi-Feature Sedan RWD
2000 ElDorado ESC Hard Boot Convertible
1995 Fleetwood Brougham
1973 Sedan DeVille
1970 Fleetwood Brougham
1969 DeVille Convertible

 

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