Is the rear brake air ducting piece that attaches to the body and the hose slips over plastic or fiberglass? Thanks
On production 66's they were a black plastic like product
How they were mounted depended on when the car was built at Shelby
Thanks for the information. What are the different ways they could be mounted? What would be the dates for each?
Should mention that there were a few early cars found with an almost white ducting color
Quote from: SFcarbuff on December 30, 2022, 02:51:31 PM
Thanks for the information. What are the different ways they could be mounted? What would be the dates for each?
Ducts were originally installed from inside the car and for some reason they were later installed from the outside, inward so that the flange edge was visible from the exterior
Write up on the subject with pictures
https://www.concoursmustang.com/forum/index.php?topic=20351.msg128514#msg128514
Since we don't have good solid dates of when this was done to each car and they were not built always in exact order based on their Shelby VIN the change over "date" would be a "fuzzy" one but currently I've got it somewhere between approx 6S2020 and 6S2070 as of my last survey three years ago
For reference, 1134 is a February build at SAI and the attachment is from the inside.
Thanks for the info! Very helpful.
Hi Jeff,,
You said "...and for some reason they were later installed from the outside,..." Isn't the reason cost savings? I believe the back seat no longer required removal along with the quarter panels to gain access to install ducting parts. If the duct fittings and hose could be installed from the outside, considerable labor cost savings could be realized. What do you think? I think they made this change too late in the production (...somewhere between approx 6S2020 and 6S2070.) to fully benefit the savings.
Cory
Quote from: 6s1640 on December 30, 2022, 10:14:05 PM
Hi Jeff,,
You said "...and for some reason they were later installed from the outside,..." Isn't the reason cost savings? I believe the back seat no longer required removal along with the quarter panels to gain access to install ducting parts. If the duct fittings and hose could be installed from the outside, considerable labor cost savings could be realized. What do you think? I think they made this change too late in the production (...somewhere between approx 6S2020 and 6S2070.) to fully benefit the savings.
Cory
Don't know for certain it was for cost savings so didn't speculate. Have not found any of the cutouts inside a car yet that would at least support the idea that they didn't leave the interior panels in place.
I think ease of installation and looks. Holding to flange on the inside and putting the rivet in from the outside requires some gymnastics or 2 people. One inside drilling and holding the flange the other putting rivets in from the outside. Putting the rivets and flange from the outside only needs one person and acceptable aesthetically.
Don't forget Ford was not happy with the speed of Shelby's assembly line and were already at SA working out details of the 67 design and build.
Quote from: J_Speegle on December 30, 2022, 11:23:24 PM
Quote from: 6s1640 on December 30, 2022, 10:14:05 PM
Hi Jeff,,
You said "...and for some reason they were later installed from the outside,..." Isn't the reason cost savings? I believe the back seat no longer required removal along with the quarter panels to gain access to install ducting parts. If the duct fittings and hose could be installed from the outside, considerable labor cost savings could be realized. What do you think? I think they made this change too late in the production (...somewhere between approx 6S2020 and 6S2070.) to fully benefit the savings.
Cory
Don't know for certain it was for cost savings so didn't speculate. Have not found any of the cutouts inside a car yet that would at least support the idea that they didn't leave the interior panels in place.
Hi Jeff,
1966 GT350 6S2339 has the duct fitting installed from the outside. What is really amazing is that the water shields behind the rear seat quarter panels are still there. This was a Mustang fastback feature and not needed for the GT350. The shields have fallen down, but amazing the long time owner did not pull them out when he was racing the car. Just another piece of evidence that supports that the back seat interior was not partially removed. I have heard early cars have no remnants of this shield with ducts fitting installed from inside the car and the interior partially removed. I expect there are some cars with the shield torn out through the holes and are now absent. But there should be remnants of the shield that remained with the car when torn out.
On the suggested reason for change, I expect it was not done to increase cost. We should be able to agree on that.
Cory
I bought some after market duct ends which were fiberglass. Was not happy with the quality and they did not cover the factory rivet holes. So I bought a block of black plastic and made my own set. These will be mounted in the inside. Thoughts before I use them..
Quote from: SFcarbuff on March 01, 2023, 08:00:36 PM
I bought some after market duct ends which were fiberglass. Was not happy with the quality and they did not cover the factory rivet holes. So I bought a block of black plastic and made my own set. These will be mounted in the inside. Thoughts before I use them..
You will be dammed to hell :o . Seriously they will not be seen so you will be the only one to know. If you have made your piece with that then I say go for it.
Hi SFcarbuff,
Very nice. Did you consider having them 3D printed? The duct fitting mounted to the the wheel well will be harder to make from a block, but might be easier to print. Do you have a 3D printing source? They would be plastic as well.
Best of luck
Cory
This is an original kit I bought from a speed shop in Sweden about 40 years ago. As can be seen one of the hoses are too short to fit a 66. Don't ask me why as I still have the original box from Shelby.
Texas Swede
Quote from: SFcarbuff on March 01, 2023, 08:00:36 PM
I bought some after market duct ends which were fiberglass. Was not happy with the quality and they did not cover the factory rivet holes. So I bought a block of black plastic and made my own set. These will be mounted in the inside. Thoughts before I use them..
Beautiful work! You certainly have the nicest set around. Did you use delrin for your material?
Frank
What rivet did SAI use to attach the air duct end pieces? Black or natural ? The car I am working on is 6S2069 with the scoop ends mounted on the outside of the quarter panels.
Rodney
Quote from: KR500 on March 02, 2023, 09:20:45 AM
What rivet did SAI use to attach the air duct end pieces? Black or natural ? The car I am working on is 6S2069 with the scoop ends mounted on the outside of the quarter panels.
Rodney
Typically natural aluminum. The rivets are typically inserted from the inside of the car with a small washer securing the other side.
Quote from: Bob Gaines on March 02, 2023, 09:54:01 AM
Quote from: KR500 on March 02, 2023, 09:20:45 AM
What rivet did SAI use to attach the air duct end pieces? Black or natural ? The car I am working on is 6S2069 with the scoop ends mounted on the outside of the quarter panels.
Rodney
Typically natural aluminum. The rivets are typically inserted from the inside of the car with a small washer securing the other side.
Bob
Thank You
Thanks all for the input. I am going to use them. Wish I had a 3-D printer. I have original sections for the wheel well. I am not sure which plastic I used; my firend has a shop and they were extra from a project he was doing on an airplane.
Quote from: KR500 on March 02, 2023, 12:18:18 PM
Quote from: Bob Gaines on March 02, 2023, 09:54:01 AM
Quote from: KR500 on March 02, 2023, 09:20:45 AM
What rivet did SAI use to attach the air duct end pieces? Black or natural ? The car I am working on is 6S2069 with the scoop ends mounted on the outside of the quarter panels.
Rodney
Typically natural aluminum. The rivets are typically inserted from the inside of the car with a small washer securing the other side.
Bob
Thank You
Rod ,I am sorry but when you said "scoop" I defaulted to side scoop. My mistake. The natural rivets are mount on the outside for a outside mounted duct end and no need for washers for this process.
Just to make it clear the 66's had the duct attached two different ways depending on when the car was modified at Shelby. Believe this was covered in another thread but as a refresher there was the early version where the ducts were attached from the interior of the car where the rivets were installed from that side leaving the compressed ends inside the exterior scoop with no washers being used. Just a few photos to illustrate
(https://www.concoursmustang.com/forum/gallery/18/6-020323164037-184271334.jpeg)
On late cars the ducts were installed from the exterior as were the rivets. Also, like the earlier version, no washers were used in this installation. KR500s/Rodney's is one of the this version. Just a few photos to illustrate
(https://www.concoursmustang.com/forum/gallery/18/6-020323164037-18426573.jpeg)
Jeff/Bob
Thank You
Rodney