Single vs Dual Diaphragm booster - is there a way to tell?

[OzCharger69]

Is there a way to tell if my booster is dual or single diaphragm from the outside? There's no way to know from the history of the vehicle. It has discs in front and rear drums.

Thanks in advance.

 

[Mopar Hunter]

Looks like a dual diaphragm Bendix booster to me.

 

[Mopar Hunter]

What kind of car?

 

[OzCharger69]

What kind of car?

69 Charger

 

[RJRENTON]

I concur.....its Bendix Tandem Diaphragm booster.....
BOB RENTON

 

[OzCharger69]

Thanks for that. How do you tell if it's single or double? The size of it?

 

[RJRENTON]

Thanks for that. How do you tell if it's single or double? The size of it?

Overall length and semi-conical shape.....see #2 pix...
BOB RENTON

 

[Demonic]

The factory cars had dual diaphragm boosters on disc cars, single diaphragm on drum cars, usually. As others said, the shape of yours matches a Bendix dual diaphragm.

 

[OzCharger69]

Thanks all