Welcome to a great forum!
If the info your looking for isn't here you may try the Fairlane Club of America
https://fca.clubexpress.com/

There a fee to join but the depth of info is amazing.
 

Welcome to FYIFORD.  Glad you found us.

The Foxbody bell will not work with your T10.  However, your existing bellhousing can be modified to work with the cable clutch system using a Foxbody release lever, an adjustable pivot stud, Foxbody throwout bearing and some welding done to the aluminum bell.  I have an instruction sheet with pictures I can email to you.

The second challenge is to make sure there is sufficient space above the top of the clutch pedal to install the quadrant.  You need about 3" clearance.  Some of the Comets had restricted area up there, and I cannot remember which years were at issue.  Send an email to me steve@mustangsteve.com and I will send that instruction sheet for the bellhousing modifications.
 

Hey, glad to see you on the best classic Mustang forum on the web.  Welcome!

If this is a street car on street tires the amount of power the transmission can "take" is meaningless.  You'll spin the tires before you can shock load the trans enough to break it.  The torque ratings you see on transmissions are basically useless anyway.  The industry testing method for determining that rating only uses first gear, and shock loads the trans until it breaks.  Its by no means a real world test.

I've rebuilt dozens of T5s and have past customers who have them in most every application imaginable, including racing.  A broken one has never come back.  A large part of that is that I understood how they were going to use the vehicle and made modifications to the trans accordingly.  There's a lot you can do to strengthen a T5.  At some point though you are going to be past the cost of buying an aftermarket trams like a Tremec. 

I could write a thesis on this stuff, so if you want more info feel free to PM me. 
 

Welcome to our Forum I have been coming here over 20 years.

BobE wrote:

Welcome to this forum, as other have indicated, there are a lot of great assistance available here.
Just a note ... I believe the early Comets are more closely related to the Falcon platform than the Fairlane.  It was maybe the 66 model year that it switched to the Fairlane platform.  Anyway, something to verify. 

Thanks for the warm welcome and input everyone. You are correct, the 1965 Comet is Falcon/Mustang based and the Fairlane is a different platform. Hence my membership in the "Ford Falcon Network" all those years. The Blue Comet in the photo is a 1965 I built and finished about 15 years ago. It was a one owner 404 289/C-4 combo that I modified quite a bit. I have many photos of it if you are interested.  The Comet I am currently building is on my rotisserie at the moment. My daily driver is a 1967 Barracuda notch that I built over about 6 years and is now finished. I am narrowing the clutch issue down and I am currently looking at a hydraulic MC and slave. Not sure I want to deal with the McCloud type.  
Anyway that's what's up with me. 

DesertRat wrote:

BobE wrote:

Welcome to this forum, as other have indicated, there are a lot of great assistance available here.
Just a note ... I believe the early Comets are more closely related to the Falcon platform than the Fairlane.  It was maybe the 66 model year that it switched to the Fairlane platform.  Anyway, something to verify. 

Thanks for the warm welcome and input everyone. You are correct, the 1965 Comet is Falcon/Mustang based and the Fairlane is a different platform. Hence my membership in the "Ford Falcon Network" all those years. The Blue Comet in the photo is a 1965 I built and finished about 15 years ago. It was a one owner 404 289/C-4 combo that I modified quite a bit. I have many photos of it if you are interested.  The Comet I am currently building is on my rotisserie at the moment. My daily driver is a 1967 Barracuda notch that I built over about 6 years and is now finished. I am narrowing the clutch issue down and I am currently looking at a hydraulic MC and slave. Not sure I want to deal with the McCloud type.  
Anyway that's what's up with me. 

Welcome, fellow Washingtonian - I'm in Mukilteo. I used to duck hunt a lot over there in the Moses Lake area, at Mardon's, in the Potholes and around Crab Creek.  I might maybe be over there with my 68 at the airport for the Moses Lake Airshow on 18-19 June. They are trying to get car clubs to attend the show. I'm still up in the air on whether to go or not. I checked the show out online and it looks pretty good.
 

TKOPerformance wrote:

I would advise driving something with a hydraulic clutch before committing to it, if you haven't already.  Personally I greatly prefer a mechanical linkage of some sort over hydraulic.  Hydraulic I find tends to be numb, and its hard to tell exactly where the engagement point is. 

Yes I am sure mechanical linkage would be better. The guy who sent me here removed his hydraulic TO bearing and replaced it with the cable system. I just need to make a decision and go with it. The mods required to make it work with my stock bellhousing and transmission do not seem overwhelming to me. I just need to source the parts to make the conversion. the bellhousing mods are easily doable. 

DesertRat wrote:

BobE wrote:

Welcome to this forum, as other have indicated, there are a lot of great assistance available here.
Just a note ... I believe the early Comets are more closely related to the Falcon platform than the Fairlane.  It was maybe the 66 model year that it switched to the Fairlane platform.  Anyway, something to verify. 

Thanks for the warm welcome and input everyone. You are correct, the 1965 Comet is Falcon/Mustang based and the Fairlane is a different platform. Hence my membership in the "Ford Falcon Network" all those years. The Blue Comet in the photo is a 1965 I built and finished about 15 years ago. It was a one owner 404 289/C-4 combo that I modified quite a bit. I have many photos of it if you are interested.  The Comet I am currently building is on my rotisserie at the moment. My daily driver is a 1967 Barracuda notch that I built over about 6 years and is now finished. I am narrowing the clutch issue down and I am currently looking at a hydraulic MC and slave. Not sure I want to deal with the McCloud type.  
Anyway that's what's up with me. 

I have a hydraulic clucth w/external slave cylinder and am happy with this setup.  As I later installed hydraulic power brakes, I had to replace the original clutch MC I installed with the Modern Driveline 'offset' clutch MC.  Also, with the hydraulic clutch, one can remove the spring on the clutch pedal assembly under the dash.  I'm not sure about removing this spring with the cable operated clutch. 

 

BobE wrote:

DesertRat wrote:

BobE wrote:

Welcome to this forum, as other have indicated, there are a lot of great assistance available here.
Just a note ... I believe the early Comets are more closely related to the Falcon platform than the Fairlane.  It was maybe the 66 model year that it switched to the Fairlane platform.  Anyway, something to verify. 

Thanks for the warm welcome and input everyone. You are correct, the 1965 Comet is Falcon/Mustang based and the Fairlane is a different platform. Hence my membership in the "Ford Falcon Network" all those years. The Blue Comet in the photo is a 1965 I built and finished about 15 years ago. It was a one owner 404 289/C-4 combo that I modified quite a bit. I have many photos of it if you are interested.  The Comet I am currently building is on my rotisserie at the moment. My daily driver is a 1967 Barracuda notch that I built over about 6 years and is now finished. I am narrowing the clutch issue down and I am currently looking at a hydraulic MC and slave. Not sure I want to deal with the McCloud type.  
Anyway that's what's up with me. 

I have a hydraulic clucth w/external slave cylinder and am happy with this setup.  As I later installed hydraulic power brakes, I had to replace the original clutch MC I installed with the Modern Driveline 'offset' clutch MC.  Also, with the hydraulic clutch, one can remove the spring on the clutch pedal assembly under the dash.  I'm not sure about removing this spring with the cable operated clutch. 

 

No spring needed with the cable system. 

Nope. If you had an FE there are bolt on slave cylinders available, but unfortunately not for a Windsor. When I added a third pedal  I had headers that were in the way of the Z bar, and didn't care to buy new ones. So I went the easy route and used an Tilton hydraulic release bearing. Pretty sure my head mechanic caused it to fail by not securing the lines inside the bellhousing, which wore on pressure plate.

I'm currently using an external slave cylinder that is mounted to a bracket I welded to the bellhousing. It's much easier to work on as it's not inside the bellhousing.

I wouldn't recommend either way I went. Cable or Z bar would be mucho gooder.