Usually 2 to 3x 10mm nuts under hood...on the shock tower...1x 13 to 15mm bolt and nut at the bottom of shock...dont forget to remove the brake line first...caution for some models you will need a coil compressor to remove the assembly, this tool can be rented for around 20$. Using this tool could be very armfull i know somebody who as lost a hand ! But its a pretty easy job it can be done in 20 to 45 mins a side. If its for your mazda i can send you the complete step by step from the mazda manual shop.
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