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Apr 26th, 2026 | | AD Chevy Trucks  Over 6,000 pictures Brad Allen has an awesome collection of Chevrolet factory pictures that he has set up from film strips. Check them out!
Lots of work on Brad's part ... pure enjoyment (and references) for you!
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For helping keep this great
old truck web site
on the Internet for over 30 years! and not clogged down
with Ads!  Again, thanks!
| | | | Joined: Aug 2000 Posts: 800 Shop Shark | | Shop Shark Joined: Aug 2000 Posts: 800 | Does such a thing exist which could be bolted up in the original location? | | | | | Joined: Mar 2000 Posts: 784 'Bolter | | 'Bolter Joined: Mar 2000 Posts: 784 | K10 - I used a 69 mustang master in my 46. I had to build a bracket for it that bolts into the same place as the original. It's kind of an L shaped thing that has a big hole for the new master cylinder on one leg and the other is drilled to match the original holes in the pedal assembly. The biggest problem I had was drilling the big hole for the master cylinder to go through, fortunately a friend had a hole saw for metal. Worked like a charm.
The other thing I had to fab was the push rod. That's pretty easy, I just cut off the eye on the pushrod that came with the new unit, threaded it to mathe the existing one and joined them to gether with a long connecter nut.
I hope this makes sense, I wish I could post a picture but, you see I'm digitally challenged.
If you need more info on how I did this I'll be happy to help.
George | | | 
#4037 09/04/2003 11:36 PM | Joined: Aug 2000 Posts: 800 Shop Shark | | Shop Shark Joined: Aug 2000 Posts: 800 | Thanks to all. ( I also received 2 emails w/ pix from a couple of well respected bolters. OK , well respected by me anyway  ) The single masters are only available as NOS-maybe or rebuilt only-with exchange up front. I'm staying original-ish but I would like to do this. The original shoes with asbestos are still in fine shape! I stopped by tthe junkyard today and looked at a lot of setups. 41-46 have a LOT of similarities with 47-50 AD's but not as far as MC's go. It seems the mustang MC is preferred. Any reason why? | | | | | Joined: Mar 2002 Posts: 9,115 'Bolter | | 'Bolter Joined: Mar 2002 Posts: 9,115 | I would like to know what the bore size is on the Mustang MC. | | | | | Joined: Feb 2000 Posts: 988 'Bolter | | 'Bolter Joined: Feb 2000 Posts: 988 | K 10 I think the Mustang is prefered because it has a built in proportioning valve. Now I might be wrong and if I am someone will correct me.
I myself have a hard time using a F O R D part on my truck. I am not saying that you should not do it I just wouldn't do it.
Brian Moore
1949 3100 5 window Deluxe
"Today is better than yesterday, but not as good as tomorrow"
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#4040 09/12/2003 12:25 AM | Joined: Jan 2003 Posts: 12 Member | | Member Joined: Jan 2003 Posts: 12 | The mustang master cylinder is recommended because it has the same bore diameter as the originals, i.e. 1". They are used in conversions up to 59 at least. I am running one on my 58 right now, works great. Matt
It takes a big dog to weigh a ton
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