lift operated spring compressor bracket makes swapping springs SO much easier. Just position the spring under the assembly and slowly lower the weighted lift assembly on to the strut and it naturally compresses the spring. Think about it: The weight of a car the weight of the lift coming down on a single macphearson strut. Genius! Plenty of margin and tons of control in both the upwards and downwards motion. Now... this jig makes it so much easier to naturally and safely compress your springs. S