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master cylinder interchange |
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Rogue401
AMC Addicted Joined: Nov/26/2010 Location: New York Status: Offline Points: 1279 |
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Posted: Aug/25/2014 at 9:31am |
Saw this list of AMC master cylinders on Hemmings Newletter.
The first line of the article reads "AMC used many parts from other manufacturers throughout the 1940s, '50s and '60s. That is why you often find components from many other auto and truck makes also used in AMC applications." What's funny is that there are very few other make interchanges, mostly in early 50-early 60s.
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Midnight Rambler
AMC Addicted Joined: Jan/17/2011 Location: SoCT Status: Offline Points: 1670 |
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You need a subscription to view it.
After what I just went through with my American, I'd love to see it. |
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'66 American 440 Convertible 290/M-40/AMC 20 3.15/PS/PB '04 Jeep Wrangler X Rocky Mountain Edition 4.0 5sp |
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Rogue401
AMC Addicted Joined: Nov/26/2010 Location: New York Status: Offline Points: 1279 |
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Oops, It doesn't ask me so I forgot. I only subscribe to the electronic edition of Muscle Machines for, I think, $7/year and it's well worth it. You get all the newsletters a couple of times a week and there usually something I'm interested in.
here's the list. Probably stepping on somebodies toes...
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401MATCOUPE
AMC Addicted Joined: May/20/2010 Location: Salisbury, MD Status: Offline Points: 5370 |
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This doesn't tell me much and has a lot of discrepancies on the last couple of lines. I would think a public published list like this would be a liability, if someone just swaps parts around when someone says "interchangable".....no value added in my book.
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Ross K. Peterson
68X,GoPac,343,AT,52A(1stCar) 68X,GoPac,390,4sp,52A 69X,GoPac,390,4sp,64A 70X,GoPac,390,4sp,87A,8 70X,GoPac,390,4sp,BBO,8 70 Jav SST,390,AT,BSO 74MatX,401,AT,Prototype 74MatX,401,AT |
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Rogue401
AMC Addicted Joined: Nov/26/2010 Location: New York Status: Offline Points: 1279 |
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My main point was that it was another typical article that says AMC used all these other parts when the list actually shows the opposite. No, it doesn't really help much.
A while back when somebody asked about other parts interchanges, I sarcastically mentioned starting a list of all the parts we could use, like spark plugs, distributor caps, some steering boxes, points, oil, wiper blades, headlight bulbs, etc. I always get in trouble because my wife says she can't tell after 36 when I'm trying to be funny
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Midnight Rambler
AMC Addicted Joined: Jan/17/2011 Location: SoCT Status: Offline Points: 1670 |
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I thought the article would list what they interchange with. So basically there is no option for the American with the odd Wagner MC unless you use the Bendix and swap the brakelines or if you go through pushrod heck like I did. |
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'66 American 440 Convertible 290/M-40/AMC 20 3.15/PS/PB '04 Jeep Wrangler X Rocky Mountain Edition 4.0 5sp |
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Rogue401
AMC Addicted Joined: Nov/26/2010 Location: New York Status: Offline Points: 1279 |
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My first go around with the drum brakes was finding a NOS Wagner thru Master Power Brakes. He also said they could have sleeved it even with the step bore. But the original owner has sold business and I don't think they do rebuilding anymore. When I went with front discs, I originally went with a rebuilt 76 Hornet manual disc MC and did have to reroute the brake lines and make a pushrod. Brake lines had to be changed to incorporate a combination valve anyway.
I still have the Wagner and have wondered how the two bore sizes would work with the rear discs? |
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farna
Supporter of TheAMCForum Moderator Lost Dealership Project Joined: Jul/08/2007 Location: South Carolina Status: Online Points: 19609 |
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Some of those AMC applications WILL interchange with other manufacturers. A lot of different Ford master cylinders will interchange with AMC. The catch is they sometimes have the outlets on the opposite side, and you have to watch out for bore size. Bendix made a lot of MCs for both AMC and Ford (does Ford own a stake in Bendix?), and other makes and even types of equipment. There are sometimes other subtle differences, so you shouldn't use a MC even if it bolts up without at least knowing the original specs and specs for the swapped unit. You may want a different bore size, especially if changing brakes.
I can tell you that AMC used a 1" bore MC for nearly all models. 75-76 all disc brake cars used a 1-1/8" MC, 77-78 just Matador used that one. 71-74 manual disc MCs (Kelsey-Hayes calipers) used a 1-1/16" bore. 67 Americans (and some 66 models) used a Wagner step-bore MC that had 1" for the front brakes and 7/8" for the rear, but I've replaced those with straight 1" bore MCs with no issues. Those are the only exceptions to the 1" bore. Left or right outlets, and the size of the tubing nuts varies by model. In general up to about 74 outlets are right side (passenger side for US), left side after. Up to about 1966 the tube nut is a different size for front and rear brake lines to prevent mixing. After that both are standard sizes. I said ABOUT 1966 -- I'm not sure of the year these changed, may have been earlier. For a good primer on brakes see the tech section at www.mpbrakes.com. There are articles there geared mainly for street rodders explaining the pressure differences with bore sizes, pedal ratios, and just about anything else you need to know to alter or build a safe brake system. If you don't have a good understanding of how hydraulic brakes work you're better off sticking to stock components. |
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Frank Swygert
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Wrambler
AMC Addicted Joined: Jul/02/2007 Location: West Virginia Status: Offline Points: 4197 |
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I scared the crap out of one of my oldest sons friends. he thought I hated him! I was just messing with his head, I guess it worked. For 2 years! He finally figured it out. I didn't really think I was doing anything special... I've also scared one aunt, both my kids at various times, my wife, etc;...oops I'm just going to be known as a grumpy old bastard |
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Wrambler
69 AMC Rambler 4.0L, 5 speed 2015 Grand Cherokee Limited 2019 Chrysler 300 |
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62ramblin
AMC Fan Joined: Sep/01/2014 Location: lake havasu az Status: Offline Points: 12 |
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I need a MC for 62 rambler any ideas out there
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