Didn't mean to infer the spring had to be compressed if one had the proper tool. What I was attempting to say was since I didn't have access to the proper tool, I wanted to use the 12 ton shop press to push the BJ's in and out. To do so, I would have to remove the arm from the car. This would require removing the spring (unless I'm completly missing something)

To me a $150 tool is only for someone who plans to repeatedly perform a repair, not a DIYer on his own car. no return on that investment. Just my opinion.

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You can't always get what you want, but if you try sometime you just might find you get what you need.