Single/Tandem diaphragm brake booster

[bakerhillpins]

So I have been doing a lot of searching about the proper brake booster and MC for a 69 RT with power drums all the way around. The general consensus is that power drum non HEMI cars received the Midland Ross diaphragm booster, and HEMI equipped drum or power disc brake cars got the Bendix units.  OK, I can go with that.

The FSM discusses 4 power brake boosters. 2 Single and 2 Tandem diaphragm units, one of each for each Mfg. The FSM is also clear in saying that the power disc cars and HEMI cars got the Bendix Tandem units with different a MCs for each. (so described the notes attached to the Figures). However, the FSM is not clear as to which units are pared with the power drum cars. I.e. both Midland Ross units and the Single Bendix are just noted as "drum brakes". Most likely because the FSM covers 3 different cars.

So how do we know which units ended up on our Charger?  I suspect the parts book is the key but I suppose that is for a different topic.

[Just 6T9 CHGR]

Single Midland Ross for power drum....Dual Bendix for power disc

[bakerhillpins]

Ok, so where did you pull that from?  The parts catalog? 

I have just posted in the General QA section because I am having trouble trying to figure out how to read that thing. 

[Just 6T9 CHGR]

...umm...my ass? 

Seriously though, the parts book is indeed vague when they list "Bendix or Midland Ross" for drum brake cars.

I am basically going by what I have seen & registered over the years.   I have never seen any other style boosters used on any original unrestored cars other than the 2 mentioned....
It is possible that the "Bendix" drum brake style could have been used on other body styles (Dart, Belvedere etc)

[bakerhillpins]

All right. I can go with that. If it was then why isn't it listed under those styles in the parts catalog? Though I guess it could just under a different part number.

A lot of this is stemming from the fact that my 69 RT Drum car has a Bendix Single Diaphragm booster on it with a master cylinder that isn't what the normal consensus says it should be. The previous owner swore that it was a valid and correct booster MC setup. Just trying to figure it all out, and if it came that way or was swapped out. The engine isn't original and the car was street raced so it's likely that stuff was changed.

http://www.dodgecharger.com/forum/index.php/topic,10676.msg1071732.html#msg1071732

[Just 6T9 CHGR]

Yes I realize that.  Granted yes, technically that master and booster will FIT a 69 Charger doesnt make it CORRECT for a 69 Charger

[bakerhillpins]

I am basically going by what I have seen & registered over the years.   I have never seen any other style boosters used on any original unrestored cars other than the 2 mentioned....
It is possible that the "Bendix" drum brake style could have been used on other body styles (Dart, Belvedere etc)

Yes, the Midland Ross single on Drum (and Hemi) and the Bendix tandem on Disc cars.

This car is up on ebay and certainly seems to be "original" with a Bendix Drum setup but can you really tell that a booster was never changed? Said the brakes failed which is why the car was shelved but doesn't say if they fixed that problem or not or what actually failed.

http://cgi.ebay.com/ebaymotors/1969-Dodge-Charger-Project-Car-matching-383ci-engine-NEWLY-REBUILT-/150877568443?pt=US_Cars_Trucks&hash=item232100fdbb

This car was purchased in July 1980 as my son's car.  We took it out of service in the late 80's as the brakes failed and we bought him another car to drive for college.  My intent was to restore the vehicle.  I pulled the engine and put the car in a barn for storage.  After I retired, I rebuilt the engine, but that is as far as I got with the restoration.  The project is more that I can do at this point in my life, so I have decided to give it over to someone that has a greater desire and more physically able.

[Just 6T9 CHGR]

That car is an original power disc car with the wrong master on it (I spy B41 on the tag).... You can see the brake lines are twisted up to make them reach the fender side of the drum brake master as well....

Get a Midland Ross booster for your car if you're concerned about "correct"...If your brakes work fine leave what you have in there & save the $$ for gas!  

[bakerhillpins]

That car is an original power disc car with the wrong master on it (I spy B41 on the tag).... You can see the brake lines are twisted up to make them reach the fender side of the drum brake master as well....

Get a Midland Ross booster for your car if you're concerned about "correct"...If your brakes work fine leave what you have in there & save the $$ for gas!  

Son of a gun. I completely missed that. 

We are all good Chris. I do appreciate the time you take to beat it into my skull.  Just trying to have a good conversation about it. I am really getting into looking at details on the car now that I have one and in the process it's raising lots of questions. It's my nature to want to get into conversation about all this stuff so I don't intend to drive anyone nuts. 

I do plan on trying to get the car "correct" as much as I can within reason so I appreciate all the help.

[Just 6T9 CHGR]

I hear ya bud, I know what you are going through....trying to "correct" 40+ years of having too many hands in the cookie jar so to speak.  Been there, done that.

[resq302]

I hear ya bud, I know what you are going through....trying to "correct" 40+ years of having too many hands in the cookie jar so to speak.  Been there, done that.

Ah yes, welcome to just the beginning of one of the many gray hairs your car will give you!