10” brake drum ? 69 Dart

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340GTSport

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Hello all
I’m going to be fixing the (4) drum brakes on my car from it be parked for many years .
Can some one tell me if there was more than one sizes of 10” drum brakes that could of came on a 69 dart gts 340 car ? I have read some post on here talking about width of shoes and what not ? What would of been stock factory if nothing was changed ?

Also can any one tell me what the bore size for the rear wheel cylinders ?

Thank u for any info .
 
There was only one size of 10" drum brakes that came on a factory 69 340 GTS. The rear shoes are unique size for the 8 3/4 rear axel. I believe 10" x 1 3/4" but not 100% sure. Front are 10" x 2" I believe.
 
There are 2 basic flex hoses. They are year dependent

The earlier 8 3/4 have the vent on the hump the later years have the vent on the housing tube

The change happened in 1970

Look on rock auto at the hose for 67 with 8 3/4 then look at 70 you will see the part number change and the length change.

If your car is a 67 but the rear has the vent on the tube you need the hose for the later year cars

Factory part numbers
67-69
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70 up
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Last edited:
Dana67Dart said:
There are 2 basic flex hoses. They are year dependent

The earlier 8 3/4 have the vent on the hump the later years have the vent on the housing tube

The change happened in 1970

Look on rock auto at the hose for 67 with 8 3/4 then look at 70 you will see the part number change and the length change.

If your car is a 67 but the rear has the vent on the tube you need the hose for the later year cars
Click to expand...
Thank you that what I was wanting to know .
 
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