In previous releases, we mentioned about compatible blades for john deere. You need to extract the screws that are appropriate for the blades. not every model is different. all blades use the same model.
in full detail the name of the part is M122465.
you can use OEM products because the original part is very expensive and is of the same quality as the subsidiary industry. The price is around $ 23.
I am adding a simple video for information about how to insert and remove a block to explain how to use the part. Please let us know in the comment when there is any problem or you have trouble with your model.