Hi guys,

I need some help. I'm finally getting ready for the final push on the 'Bee and as the car never came with a booster or M/Cyl I'm trying to figure out what is correct (and where to get it).

The car is my '70 Super Bee with (power) disk brakes. According to my Service Manual, I believe I should be using a Bendix booster (crimped rather than the clamped Midland Ross unit) and my master cylinder should be the tandem reservoir unit with the bale wire hold-down.

I've always been under the impression that Hemi cars had the brake lines connecting to the master cylinder on the fender side and all other motors had the lines connecting on the motor side of the master.

My questions are;

- Did only Hemi's get the Mcyl that had the fender side line connections?

- Am I looking for the correct booster?

- Are the backing plates different between drum/disk and or power/manual setups?

- Any assistance on where to procure the correct stuff would be appreciated.

Thx

Dave

I can tell you for the master cylinder, you are correct. The non hemi disc unit has lines exiting toward the engine. If you want something that is very close to the original Bendix one, several sources including Napa have an aftermarket unit that is almost identical except for the numbers cast into the bottom.

Thanks guys. I did get one from my local jobber and it was incorrect (had the bolt on cap). I'll try NAPA, but it'd be great if I could get a pic or two of the right one.

Any pics of the correct booster would be great too: I have the (dis)pleasure off all this stuff missing off my car so I'm starting from scratch.

Any ideas on the backing plates?

Thanks again.

Cheers,
Dave

Here is an NOS Bendix master cylinder.

Here is the aftermarket one that recently became available. I think NAPA sells it as a rebuilt, but it is new. Unfortunately made in China but what isn't now days?
Paint it semi gloss black and its hard to tell from a real Bendix.

I don't know alot about the boosters.
Is there a backing plate with a power booster? None on an E body, I thought those were just used on manual brake cars?

Thanks for the pics; I agree, a coat of gloss black and that master would be good enough.

There is a backing plate on the Hemi B bodies for sure, and I'm assuming on the others as well. Unfortunately the Service manual only shows drum brakes and "Power Brake Assembly (Bendix) Drum and Disc Brakes (426 Hemi Only)".

Also , I *believe* that the backing plate on my car is original, but who knows with the amount of micky mousing that has gone on with this car in the past.

Dave

I checked some more survivor pics and I now believe the plate needs to be there......but I'm sure there are several plates! The one I have has 2 studs (with four holes below for the booster) and a parallelogram shaped hole.

Dave

OK here are several shots I just took, hope they help. There definately is a 'plate' behind the booster. This is the NAPA master cylinder in the pics.
(also note my newly installed windshield wiper motor just received from Jules)

Jeff's pics(above) are dead on, for what you need, or what it looks, finished

Here's a NOS master 70 disk/drum

Here's the repro.....slight differences, the bail wire, small "centering" hole at bore end casting, slightly taller casting (only noticable if comparing side by side) dose have the small boss located unter the bore, like a 70 "numbers" master would, 69's are smooth under the bore casting

Also several different bendix boosters, the Hemi booster has 3/8 studs on the back, smaller bolt profile because it goes on a HEMI only offset bracket the pushrod assy is approx 3- 3 1/2" long, if I recall the pushrod length for the B body is approx 4 1/2- 5",......the C bodys have a 6 1/2" rod, they bolt directly to the pedal, the "standard" boosters have 5/16" mounting studs


note: all the pushrod measurements I refer to are taken off the back of the booster body, to the pushrod hole center

The booster on the bottom is a B-Body application

This is what a Hemi application would look like

As far as you know is that booster original to the car? You don't want to sell your old MC do you?



Dave

Thanks Mike; excellent info.

Actually one of the magazine pics I saved was one of your '70.

Does the power brake backing plate have a round hole by chance?

Thanks again.


Dave

Dave, I just used the non-power plate and modified it (machined/milled out) to accept the booster,you could get by using a hole saw, if you don't have machine shop access?......because as I mentioned eariler, you won't see the "surgery"



Mike