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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » Does this look right?

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    2/10/2023 12:52 AM  #1

    Ron68
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    From: Mukilteo, Washington
    Registered: 4/01/2013
    Posts: 1,575

    Does this look right?

    Transmission mount on C4 - looks like rubbers have broken loose?


    68 coupe - 351W, 4R70W, 9" 3.25 -- 65 convertible - 289 4v, C4, 8" 3.00
     

    2/10/2023 1:51 AM  #2

    Nos681
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    From: Atlantic Mine, Michigan
    Registered: 7/14/2016
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    Re: Does this look right?

    Looks like it to me.

    I would check the motor mounts too.

     

    2/10/2023 2:09 AM  #3

    Ron68
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    From: Mukilteo, Washington
    Registered: 4/01/2013
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    Re: Does this look right?

    Motor mounts are good. Trans shift fine with no jumping. Found it because I was removing the seats.

    68 coupe - 351W, 4R70W, 9" 3.25 -- 65 convertible - 289 4v, C4, 8" 3.00
       •Thread Starter
     

    2/10/2023 6:03 AM  #4

    TKOPerformance
    Hyper FYIFORD ADDICT

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    From: Newark, DE
    Registered: 12/15/2014
    Posts: 7,488

    Re: Does this look right?

    I would replace that. 

     

    2/10/2023 8:39 AM  #5

    Steve69
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    From: Madison Wisconsin
    Registered: 4/01/2013
    Posts: 2,735

    Re: Does this look right?

    I have a C4 Mount that I pulled off my Son's 68 that looks just like this.  The rubber bushings are completely broke off.  He's switching to a t5 anyways.  But yeah the transmission was basically just sitting on top of it with nothing secured. 

     

    2/10/2023 9:27 AM  #6

    BobE
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    From: White Plains, NY
    Registered: 4/04/2013
    Posts: 2,636

    Re: Does this look right?

    Ron68 - yes, that mount needs to be replaced.  Make sure the trans cross brace is located properly.

    Steve69 - The trans mount in those years are the same for automatic and manual transmissions.  I have a T5 in my 65 and used the original 65 trans mount. 

    65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
     

    2/10/2023 12:31 PM  #7

    Ron68
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    From: Mukilteo, Washington
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    Re: Does this look right?

    BobE wrote:

    Ron68 - yes, that mount needs to be replaced.  Make sure the trans cross brace is located properly.

    Steve69 - The trans mount in those years are the same for automatic and manual transmissions.  I have a T5 in my 65 and used the original 65 trans mount. 

    Thanks all, getting a new mount today and will verify that the trans cross brace is located properly. I will also look into making sure the mount isn't pre-loaded when installed. I might have to elongate the outer holes a bit so that the mount is in a null condition when I tighten the outer mount bolts.
     

    68 coupe - 351W, 4R70W, 9" 3.25 -- 65 convertible - 289 4v, C4, 8" 3.00
       •Thread Starter
     

    2/10/2023 2:10 PM  #8

    MS
    Forum Originator

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    From: Canyon Lake, Texas
    Registered: 1/24/2013
    Posts: 12,243

    Re: Does this look right?

    Cheap at OReilley’s

    Money you enjoy wasting is NOT wasted money... unless your wife finds out.
     

    2/13/2023 8:50 AM  #9

    Steve69
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    From: Madison Wisconsin
    Registered: 4/01/2013
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    Re: Does this look right?

    BobE wrote:

    Ron68 - yes, that mount needs to be replaced.  Make sure the trans cross brace is located properly.

    Steve69 - The trans mount in those years are the same for automatic and manual transmissions.  I have a T5 in my 65 and used the original 65 trans mount. 

    Good do know!  Ill let my son know for the conversion!

    Thanks
    Steve69
     

     

    2/13/2023 12:27 PM  #10

    Ron68
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    From: Mukilteo, Washington
    Registered: 4/01/2013
    Posts: 1,575

    Re: Does this look right?

    Ron68 wrote:

    BobE wrote:

    Ron68 - yes, that mount needs to be replaced.  Make sure the trans cross brace is located properly.

    Steve69 - The trans mount in those years are the same for automatic and manual transmissions.  I have a T5 in my 65 and used the original 65 trans mount. 

    Thanks all, getting a new mount today and will verify that the trans cross brace is located properly. I will also look into making sure the mount isn't pre-loaded when installed. I might have to elongate the outer holes a bit so that the mount is in a null condition when I tighten the outer mount bolts.
     

    The new mount had the outer mounting holes already elongated. I moved the mount as far aft as the holes would let me, and when I lowered the transmission back down the two lower studs dropped straight down into the holes in the cross member - so no preload like before. The original outer mount holes were not elongated, so the mount was preloaded aft, and that is why the front attachments failed.
     

    68 coupe - 351W, 4R70W, 9" 3.25 -- 65 convertible - 289 4v, C4, 8" 3.00
       •Thread Starter
     

    2/14/2023 9:21 AM  #11

    BobE
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    From: White Plains, NY
    Registered: 4/04/2013
    Posts: 2,636

    Re: Does this look right?

    Success is always good news!

    65 Fastback, 351W, 5-speed, 4 wheel discs, 9" rear,  R&C Front End.
     

     

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