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triple john
Member

522 Posts

Posted - 04/28/2008 :  10:59:25 AM  Show Profile  Reply with Quote
Hey All. Are the MII double hump cross members all the same? In other words can I use a double hump cross member from a 76 v8 car on my 78 v6 car with a C3 trans? Thanks!

cobraii351
Member

USA
731 Posts

Posted - 04/28/2008 :  11:14:31 AM  Show Profile  Visit cobraii351's Homepage  Send cobraii351 an AOL message  Send cobraii351 a Yahoo! Message  Reply with Quote
Yes.

Tim

351W, Ported D0OE heads,69 Shelby alum. intake, Motorsport M6250A332 cam, AOD w/wide ratio gearing, TCI Street Fighter conv., 9" 3.25 t/l, SSM subframe connectors, Heidt's Granada brake kit
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triple john
Member

522 Posts

Posted - 04/28/2008 :  4:36:36 PM  Show Profile  Reply with Quote
Cool...Thanks!

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prostang
Junior Member

Canada
479 Posts

Posted - 04/28/2008 :  6:40:10 PM  Show Profile  Reply with Quote
The dubble hump cross member was stock on all II's up to 1977. Any 77 or 78 car with a dubble hump cross member has been installed by a prevous owner. The cross members all fit the same and will work on any year car .
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CobraKid And CobraCrazy
Moderator

USA
2372 Posts

Posted - 04/28/2008 :  6:50:11 PM  Show Profile  Reply with Quote
I was thinking that the V8 cars had a hole in the center in between the bolt holes that bolts it to the mount?

77 Cobra II Prostreet
77 Cobra II, 76 2+2
2- 78 2+2 T Tops
74 Mach 1
74 Coupe {Tina's Toad}
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50 dollarCOBRAII
Member

USA
879 Posts

Posted - 04/29/2008 :  8:21:37 PM  Show Profile  Reply with Quote
quote:
Originally posted by CobraKid And CobraCrazy

I was thinking that the V8 cars had a hole in the center in between the bolt holes that bolts it to the mount?

You sir you are correct

http://obamaclock.org/

Edited by - 50 dollarCOBRAII on 07/27/2010 4:52:24 PM
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triple john
Member

522 Posts

Posted - 04/30/2008 :  1:42:09 PM  Show Profile  Reply with Quote
So will the double hump crossmember work with my v6 with C3?

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feeble
Advanced Member

USA
2035 Posts

Posted - 04/30/2008 :  2:06:02 PM  Show Profile  Reply with Quote
For some reason I was thinking that there were two double hump crossmembers, but one "humped" a bit deeper than the other.


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CobraKid And CobraCrazy
Moderator

USA
2372 Posts

Posted - 04/30/2008 :  6:54:28 PM  Show Profile  Reply with Quote
feeble, You know I think I agree with you, now that I think about it.I belive you might be right.

77 Cobra II Prostreet
77 Cobra II, 76 2+2
2- 78 2+2 T Tops
74 Mach 1
74 Coupe {Tina's Toad}
79 Mustang Indy Pace Car
http://www.Cardomain.com/ride/2216790
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50 dollarCOBRAII
Member

USA
879 Posts

Posted - 04/30/2008 :  9:46:00 PM  Show Profile  Reply with Quote
I need to clean the one in the car so if no one beats me to it i'll measure the two i got and see

http://obamaclock.org/
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1976II
Junior Member

USA
315 Posts

Posted - 05/01/2008 :  03:41:54 AM  Show Profile  Visit 1976II's Homepage  Reply with Quote
That center hole for the bolt is important

I was not aware of this when I was installing one... Good thing plasma cutters exist

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triple john
Member

522 Posts

Posted - 05/01/2008 :  08:39:39 AM  Show Profile  Reply with Quote
SO...will it work with my V6 & C3?

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50 dollarCOBRAII
Member

USA
879 Posts

Posted - 05/01/2008 :  4:32:41 PM  Show Profile  Reply with Quote
quote:
Originally posted by triple john

SO...will it work with my V6 & C3?

Yes

http://obamaclock.org/
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50 dollarCOBRAII
Member

USA
879 Posts

Posted - 05/01/2008 :  5:28:40 PM  Show Profile  Reply with Quote
quote:
Originally posted by feeble

For some reason I was thinking that there were two double hump crossmembers, but one "humped" a bit deeper than the other.



This is what i came up with..............
  • Slotted end left right 2 9/16 2 1/2 2 5/8 2 5/8 2 7/8 2 7/8 This is the back side slotted end................ 2 5/16 2 3/8 2 3/8 2 3/8 2 3/8 2 3/8
This is measured off the three crossmembers i have. One is out of my V-8 COBRA the other two are double humps out of 4/6 cars. Could be just production line variances. As you can tell the hump is not necessarily the same height front to back . The highest numbers did come from the v-8 piece. I say the differences are just production tolerances... Now lets see if it posts the way i typed it. lol Jon

http://obamaclock.org/

Edited by - 50 dollarCOBRAII on 05/01/2008 5:34:31 PM
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51degII
Advanced Member

Canada
2627 Posts

Posted - 07/27/2010 :  9:09:46 PM  Show Profile  Send 51degII a Yahoo! Message  Reply with Quote
quote:
Originally posted by 50 dollarCOBRAII

quote:
Originally posted by feeble

For some reason I was thinking that there were two double hump crossmembers, but one "humped" a bit deeper than the other.



This is what i came up with..............
  • Slotted end left right 2 9/16 2 1/2 2 5/8 2 5/8 2 7/8 2 7/8 This is the back side slotted end................ 2 5/16 2 3/8 2 3/8 2 3/8 2 3/8 2 3/8
This is measured off the three crossmembers i have. One is out of my V-8 COBRA the other two are double humps out of 4/6 cars. Could be just production line variances. As you can tell the hump is not necessarily the same height front to back . The highest numbers did come from the v-8 piece. I say the differences are just production tolerances... Now lets see if it posts the way i typed it. lol Jon




Sketch!! :D
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