If they are adjustable when it is cold start it up and feel the push rod tubes if one is loose you will know right away ... They aren't hard to adjust I had one loosen up last week and had to fix it on the road....
If it is a push rod don't try to ride it it will fu// up a valve or possibly take your rings out... But if they are adjustable you can fix it with two 1/2 open end wrenches and a 5/16 and 2 flat screw drivers to pust the push rod tubes down with if its a outside one it is much easer...If you have my luck it is always the back one and harder to get to....
hydrolics are suppoxe to be self adjusting and will float in a pinch unless things have changed
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solids need adjusting they come from factory hydrolics
Not sure about the nimber you have but does it say anything at all about adjustable if so you can readjust the one that loosend up if that is the case....Tha a at thend of your number might mean adjustable..
After midnight here am heading to bed Ill check in the morning around 7am our time to see how you are making out....Im in Pennsylvania.... The part number you gave me is for adjustable..