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- Camp Wood/LC, TX
Figured I would cover this since the -20 does not go into detail. My chamber would leak air when the parking brake was released. To remove the chamber, on the rear axle, I had to of course disconnect the three air hoses, and additionally, remove the brass adapter fittings, so the chamber could be threaded out. Next, cage the spring brake. Next, using a drift punch, loosen the lock nut on the chamber threaded shaft. At that point, you should be able to unscrew the chamber. You will need to cage the new chamber before threading it in. Make sure to use antiseize on the threads during reassembly. Thanks to Keith at MTP Drivetrain for fixing me up with the new chamber.
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