jack up brackets

fastraxsg · #1 (**permalink**) 07-25-2006, 09:56 PM

Does anyone have a drawing with dimensions of the jack up brackets used front and rear on the racing Cobras? I need one that can be used as opposed to a cosmetic one. Thanks

JGC · #2 (**permalink**) 07-26-2006, 05:31 AM

Hey Ken,

Superformance tells you not to use theirs to jack up the car. The quick jacks themselves would be strong enough, it is the structure and attachment to the frame that is the issue. Obviously, if there is flex in the quick jacks the mounting studs will contact the body and damage it.

The front and rear frame and support work is quite different on the replica's versus the original. I guess you could attach the quick mounts and gently apply pressure to each with a jack and see where reinforcement needs to be placed. I decided to go with bumperettes and hoops since the quick jacks weren't going to be functional.

If you go ahead with this I would like to see the lift jack you make to use the quick jacks. The car would look cool jacked up on two of them.

JGC

double ugly · #3 (**permalink**) 07-26-2006, 05:45 AM

Someone posted a while back that the quick jacks on the original cars had some flex to them.
John

Dominik · #4 (**permalink**) 07-26-2006, 06:03 AM

good day,

any part in tension is causing to flex ;-)

Yes, the original birdcage where the quick jacks are attached to does flex.
but I would imagine not as much as to touch the body.

however, as discussed earlier, the quick jacks are cosmetic on most kits.

I can chack my files to fax you a drawing, but wait until "mickmate" replies.
he should have it as well.

dominik, south-africa

fastraxsg · #5 (**permalink**) 07-26-2006, 06:12 AM

For the original jacks, in Dave Friedman's book, "Cobra", page 59 and page 151, there are photos of the orginal jacks themselves. They take up a lot room in the garage. I need a way to adapt a tow bracket to the brackets too, found some good idea here on the site. I have some issues with my current cobbled up front frame so thought might be a good time to revisit things. In the photos, it seems the brackets are tucked in tight to the body to avoid flex and the end of bracket comes down lower to avoid hitting the body. Any help would be appreciated.

Dominik · #6 (**permalink**) 07-26-2006, 06:29 AM

hi,

my books are at home, but I guess you are referring to the pics with the deformed aluminium around the quick jacks.

just look at it, imagine you have to slide in a jack which they use at the track.
you want the brackets to point down (naturally) and with the longer end closer to the chassis, to allow for better, easier fitment in a hurry.

yes, flexing would also be reduced.
and of course, you need a long garage for that...

but look at pictures in this part of the forum to find out about the construction of the radiator frame to get an idea how it needs to be build to allow for lifting.

I'm sure one did post a picture showing this part.

dominik

Dominik · #7 (**permalink**) 07-26-2006, 06:33 AM

and this may help:

bumper jacks out or in?