First to all. Don't use the following pictures as a guide to finishes and other unrelated details. We are focusing on the boosters and the examples are used cars which often have some changes from how they were build originally from the factory
First the visible major differences
Left is the Bendix example on the right the Midland
- How the front and rear outer shells are attached.
Bendix used a crimping method - Orange arrow
while Midland used a metal band - Green arrows. Note that the unit has been rebuilt and sprayed a finish other than the original semi-gloss black (with the master cylinder, cap and bale) and has a longer than typical retaining bolt (blue arrow) and is missing the ID tag normally held by the bolt head to the band
- The Midland version also has a thin plastic spacer with a foam insert between the master cylinder and booster that acted as an air filter of sorts. - Red arrow
- Both front shells are shaped differently and the check valves are located in different locations.
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Since we're focusing on the Bendix here are some additional pictures and details from different angles
Note pictures were taken from generally cars with the engines removed, allowing for these angles, so the vacuum hose is shown directed away from the engine to keep it out of the way. In a fully assembled car that would bot be the case. Just thought it should be mentioned
Hope this helps
