ConcoursMustang Forums

1st Generation 1964 1/2 - 1973 - Questions & general discussions that apply to a specific year => 1967 Mustang => Topic started by: carguytroy on April 02, 2022, 06:20:57 PM

Title: 390 C6 - Transmission Crossmember Question
Post by: carguytroy on April 02, 2022, 06:20:57 PM
Trying to identify this crossmember or rather make sure I have the correct one for my car. Picking up missing items as I work through putting the Mustang back together. Car is a 1967 Mustang 390 with a C6 trans. Here's a few pics. The numbers on it are 5 11 3 then an "A" with a circle around it. Is this the right thing and what would the factory finish have been? Thanks.

(https://i.imgur.com/vi3Y0XFm.jpg)
(https://i.imgur.com/t2X2Rfrm.jpg)
(https://i.imgur.com/ICAT0Htm.jpg)

Title: Re: Transmission Crossmember
Post by: RoyceP on April 02, 2022, 09:51:55 PM
The one you need should have a large ?390? engraved. I think the one you have is likely for a 351/ C6 application.
Title: Re: Transmission Crossmember
Post by: carguytroy on April 02, 2022, 10:08:31 PM
Looking around the web it looks to be correct. West Coast Classic Cougar shows an example that matches exact. I was told it was out of a 67 Shelby which I doubt, but I'll go put it in the car and see what's up. Were these painted or just bare metal?
Title: Re: Transmission Crossmember
Post by: RoyceP on April 02, 2022, 10:23:39 PM
Not sure what you are seeing but they all were unpainted bare steel.
Title: Re: 390 C6 - Transmission Crossmember Question
Post by: J_Speegle on April 03, 2022, 12:00:30 AM
There are a bunch of them that look pretty similar to one another

There is a close up picture of the same transmission mount shown in the unrestored picture area of the site in the one marked
67 San Jose 390 GTA Fastback - Unrestored Picture Thread
Picture is labeled U-10 on the third page

Numbers you found are the date code and based on your signature it was made a couple of months or so  prior to your car's completion date

A few additional pictures from that unrestored late San Jose 390 GTA. Compare these details with the one you have

(https://www.concoursmustang.com/forum/gallery/17/6-020422225931-17124928.jpeg)

(https://www.concoursmustang.com/forum/gallery/17/6-020422225925-17123481.jpeg)

(https://www.concoursmustang.com/forum/gallery/17/6-020422225924-171222250.jpeg)

Hope this helps




Title: Re: 390 C6 - Transmission Crossmember Question
Post by: K-HESS on April 03, 2022, 10:53:07 AM
From what I recall the 390 c6 cross member has more reinforcement. The blue one picture has the reinforcement that runs across 3/4?s of the back side which would be for a small block. The 390 version has the reinforcement all the way across from end to end. Looking at the pictures Jeff posted you can see that where the large R is stamped there is reinforcement metal above the R stamping basically creating a channel.
Title: Re: 390 C6 - Transmission Crossmember Question
Post by: Daven on April 04, 2022, 03:17:25 AM
Thanks Jeff!  Now I can sell my one that is painted black and keep my bare metal one. 

Dave