Start by cleaning the master cylinder housing and the
Brake Master Cylinder reservoir with solvent such as Mopar Brake Parts Cleaner. After removing the reservoir cap, squirt all the brake fluid you can from the reservoir with the syringe. Ensure you do not remove the brake master cylinder reservoir from the master cylinder because this can cause problems. After that, unhook the master cylinder assembly from the power brake vacuum booster and hold the master cylinder in a vise using the flange for the mounting. Insert the right size punch pin into the two holes to remove the pins that hold the reservoir and master cylinder together. Tilt the brake master cylinder reservoir gently sideways as you pull it up to remove it from the seal grommets in the master cylinder housing and after that, take out the two seal grommets. Before putting the master cylinder in your car, install the new sealing grommets and oil the reservoir area. Set the reservoir on top of the grommets and apply pressure as you rock it to help it sit well. Check that the brake master cylinder reservoir is not too high or low, so that it contacts each sealing grommet. After inserting the two retaining pins for the brake master cylinder reservoir into the master cylinder, assemble the master cylinder assembly to the
Brake Booster. Make sure to put the fluid in the reservoir up to the level shown on its side.