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The Wabco STC2784 is the usual accumulator substitute used on our cars. It may be a different part number from a carmaker for the same part but I have no way of knowing. The part number above is used on Range Rovers.

Finally finished doing the suspension work. The 89’ regal rear struts fit like a glove after the modification. Took the car around the block and it drives like a car now. just need to get it aligned.

To my knowledge no one has rebuilt the master cylinder or the ABS section (valves) on the Teves brake unit, other than remanufactured units from professional rebuilders who sell them. I don't recall anyone mentioning a source for master cylinder parts that could be used to rebuild it. It is usually the power assist portion that bolts on the side of the master cylinder that gives problems. The accumulator and pressure switch are the items that give problems. Sometimes a pump goes bad but that is rare.