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CC Advertisers
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 2Likes
06-08-2008, 12:33 PM
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CC Member
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Join Date: Mar 2001
Location: Provo,
Ut
Cobra Make, Engine: Kirkham, 427
Posts: 6,990
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Not Ranked
I had an email question. "What kind of bolts are you using?"
We are using aircraft bolts anywhere there is a through hole that needs to be bolted together with a nut. You can see that on the front of the chassis where the jack hooks bolt on. When we have to bolt directly into the aluminum, we are using coarse threaded bolts. They are not aircraft bolts, but USA made, grade 8 bolts--where possible. We can't get a hold of AN (military/aircraft) coarse threaded bolts, or we would use them. We try to use "Unbrako" or other high quality socket head cap screws or taper head cap screws where possible. The large surface area under the head of a taper head cap screw really helps to hold the parts together.
David
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06-08-2008, 12:35 PM
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CC Member
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Join Date: Mar 2001
Location: Provo,
Ut
Cobra Make, Engine: Kirkham, 427
Posts: 6,990
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Not Ranked
That said, I am happy to answer any more questions you all might have. Not sure if I will have the answer or not, but I will try to answer the best I can.
David
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06-08-2008, 12:39 PM
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CC Member
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Join Date: Mar 2001
Location: Provo,
Ut
Cobra Make, Engine: Kirkham, 427
Posts: 6,990
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Not Ranked
I just found another pic.
This is a shot of a little fixture we made to set the proper distance on the rod ends to the control arms. As many of you who have worked on control arms with rod ends know, the rod ends have to be screwed in a certain distance for you to get the alignment reasonable close to where you want it. Otherwise, you are liable to start to align the car and chase your tail. We have even had some customer's alignment guys call us up on the phone and tell us there were NOT ENOUGH THREADS on the rod ends to align their car... 
We had to tell them to screw the rod ends back in on all the control arms and start over. Sometimes you can screw yourself right into a big hole you can't get out of if you aren't careful.
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06-08-2008, 03:44 PM
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CC Member
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Join Date: Jun 2006
Location: Las Vegas,
NV
Cobra Make, Engine: 427 SC
Posts: 388
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Not Ranked
Thats slick. I've often thought of different ways to pre-set the control arms and I've never come up with anything that simple.
Quote:
Originally Posted by David Kirkham
This is a shot of a little fixture we made to set the proper distance on the rod ends to the control arms,,,
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06-08-2008, 04:24 PM
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Senior Club Cobra Member
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Join Date: Aug 1999
Location: Ellington,
CT
Cobra Make, Engine: Classic Roadster 351W, T5, Red & White
Posts: 3,478
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Not Ranked
We can't get a hold of AN (military/aircraft) coarse threaded bolts, or we would use them
Possible source ?
http://www.mcmaster.com/
__________________
2014 Porsche Cayman S, 2014 M-B CLA 45 AMG,
Unkown:"Their sweet lines all but take my breath away, and I desire them as much for their beauty as for their use "
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06-08-2008, 07:21 PM
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CC Member
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Join Date: Mar 2001
Location: Provo,
Ut
Cobra Make, Engine: Kirkham, 427
Posts: 6,990
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Not Ranked
Kris,
They are really slick. I have good guys who are always looking to make things faster and easier.
David
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06-08-2008, 07:22 PM
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CC Member
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Join Date: Mar 2001
Location: Provo,
Ut
Cobra Make, Engine: Kirkham, 427
Posts: 6,990
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Not Ranked
Quote:
Originally Posted by Don
We can't get a hold of AN (military/aircraft) coarse threaded bolts, or we would use them
Possible source ?
http://www.mcmaster.com/
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We get stuff from mcmaster.com almost every day. I don't think they have AN coarse bolts. If they do, I'd love to find them.
David
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