USMC 00-08
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That is my understanding as well. The master cylinder I am replacing on my truck had a check valve in it. One off of a parts truck did not have one.
The airpak does have a check valve and it was the seal in front of that, that was bad on mine. Not sure if it is because of doubled up check valves or not. Everything else looked near new.
I am going to go back with no check valve in the master.
The airpak does have a check valve and it was the seal in front of that, that was bad on mine. Not sure if it is because of doubled up check valves or not. Everything else looked near new.
I am going to go back with no check valve in the master.
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