yes those are casting hole for fluid drainage but as for the spring issue I would replace with the new updated design they are the same fit if 1 spring broke the rest are soon to follow just my 30+ years of doing this
Car wash does a pretty good job. Scrape the big stuff off and spray some carb cleaner on it.I was leaning that way with my limited knowledge but am confident they were now with everyone elses opinions and some online pictures and videos I was able to find. Thanks for the help.
Any special steps to clean the case or just coat it with degreaser inside and out, scrub and pressure spray?