SAAC Forum

Just to be clear since my posting of 6R127 was likely confusing to some and some may have assumed it was a typo. So to be clear. Currently I am using, as we often do, Ford VINs to compare and organize findings since this is a Ford detail not a Shelby one. This allows me to include more data points (Mustangs built at San Jose in this example) which should make the findings more accurate and correct. Since they were built side by side, parts provided by the same vendors and installed by the same workers it's the best practice IMHO

So to be clear - currently the change over point I see indicated is around cars with Ford VINs starting with 127xxx. Since cars were not assembled/finished in sequential order the range is likely a few thousand one direction or another. Plus they (the workers supplying the bins or shelves) likely didn't wait until the bin was empty of all master cylinders before they refilled it.  So you might have had a few stragglers. If the bin held individual cylinders then there may have been no stragglers. 

Hope this helps explain better my earlier post - that I went back and added to.

That is the problem with terms they can and do mean different things to different people and those selling cars or parts can often edge their comments in many ways.  If buying or discussing I always ask whoever is talking or presenting "facts" what they mean by that term. May be "restored" "all original" "unrestored" ........ Since one or two words IMHO are inadequate in communicating all the nuisances.

Cory - Looked through all my pictures and notes and have to offer that I can't find any thing supporting that this is the original one for your car. Nor  the correct style (with fittings) for a car in the 1600's.

Right now I've have examples of no-fitting disc brake master cylinders starting on San Jose built cars starting in the 6R127 range. Ford VIN since survey would include both disc brake Mustangs and Shelbys since there was no difference on the line between the two at San Jose in this detail.  Way, before your car was likely built. Believe 6S1203's is a no-fitting version also but that is just one of many I have records of.  Survey has produced a pretty hard line indicating the change over so the data appears to confirm that range but have started a survey on our site to get more data along with date codes from the master cylinders to back up matching car and unit.

Just thought I should share historical data and info to the discussion

Quote from: Cjc6566 on January 24, 2018, 06:42:26 PM
Hey guys, I am no where near as versed as the experts and in the old forum I would just search this topic but in the new world post melt down I will put out to the group attached are pictures of the master cylinder I just pulled out of my car... is this original? And if so or not how do I tell ?  And finally to make this an efficient post is this worth rebuilding?

Cory can't tell from the picture. What is the date code on the bottom?  Its kind of in the shadows.

Some additional pictures from unrestored cars


Decals

8T1803xx


8T03J1924xx




Mats and details close by

8T03S1494xx


8T1803xx


8T03J1924xx



Hope this helps

Quote from: Bob Gaines on January 23, 2018, 05:46:25 PM
I believe the unit was turned upside done to rivet or to install the insides which would explain the reason why occasionally the top of the rivet head was covered with a very thin layer of sealer. .............

Another possibility is that the sealer in other locations may have been the sealer left in the press from the last unit that was in the press. Just a possibility

Think you'll find that little is usable especially if you take into consideration that there are a number of running changes during the production year for your Shelby so more differences (parts not matching) if you have, for example an early car than a later car but still only a few more incorrect parts.

Quote from: Bob Gaines on January 22, 2018, 10:47:33 PM
Jeff,late 67 is my best guess . The C7 marked filter is a FG15 by the thread . I am not sure what the C5 marked filter is . For those reading the FG 15 was the one used on the GT 350 needing a adapter.

The C5 version is a FG-15 also.  Don't think we settled on it last time we discussed these in that older thread.  Interesting piece at least

Bob when do you think the versions with the part number and logo were stamped into the metal were used or came into usage?

Know we went through this subject and similar posted pictures before the big crash.

C5AE version





C7AE version

Quote from: 67411F--0100-ENG. on January 22, 2018, 01:13:30 PM
I thought the photo was from an article in Popular Hot Rodding or Drag Racer.  .....................

I've got it from Popular Hot Rodding.  Have the mag here on the shelf somewhere 

I would have guessed it was a post mid April car with a possible VIN above 2000 based on the few clues in the picture.

It has been suggested that the car may be 6S2186 or 6S2169

Wiper condition today after 50 years has allot to do with what we we and find on these cars. Left alone many can show the affects of the elements on the finish while cleaning and polishing can create differences in the other direction

Here are some examples from all the same time period at San Jose in 66 (6R130000-about 136000)











And from later in the year

6R163xxx



6R178xxx



6R186xxx



6R196xxx



6R2042xx




Personally for the majority of the production year (later period of the two) I would focus to find something that looks like the example 6R196xxx above. Happens to belong to a car I've know since the 80's very nice unrestored car that spent most if its life (after the initial years) stored inside under covers but not polished and detailed.  Don't think its ever been buffed.

Didn't include the Shelbys numbers since they are not as accurate to production periods as Ford VINs are

Hope this helps

Though they were used on 66  Mustangs I believe that they were not used on export cars or Shelby's. Clips are much more difficult to install (taking up time) and I've not found scratches on original export braces that would support that they were there at some point and fell off.

Have plenty of unrestored car pictures without the clips but thought I would instead share some pictures from 65 and 66 since this is a detail shared with both years and cars.  Can't find an example in print of any being used. Sorry for some of the quality of the scans but in examples I used I choose ones where you could follow the sharp edges of the export brace to indicate if anything was attached to that edge


















Hope this adds to the discussion as always

There are some that would not have any color other than white and there are those who would never have one that was automatic but each car is different and brings with it the positives and negatives of past choices, its history and its original make up. 

Green 66's are different from the Lime Green 67 you choose to compare with. In 66 few green cars were built  while Lime Green in 67 was pretty popular. Rarity and or what was popular in the last doesn't guide value nor always popularity today or tomorrow.

Believe condition and history play a bigger part for many than just exterior color. But every car is different as is the situation.

Any chance of turning spelling help feature of the software?  Know I can always use the help and it would help reduce the editing of the post which happens for me way too often

Thanks