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Help Needed with Brake Booster- Quickly

hunter29078

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Oct 29, 2008
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Lugoff
I have a 1975 K5 Blazer. Parts house is showing 2 different boosters- one is a single diaphram and the other is dual diaphram- which do I need? What is the difference between the 2?
 
the fat one is usually dual, slim skinny one is single
compare the one you currently have with the one the parts place has on hand... you'll know
 
Thanks. I got to the parts house and I didn't even know there were two different styles. I got the dual and I willcompare them tomorrow. Do you know if they are interchangeable? I have since read the dual feels a little tighter on the brakes.
 
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