Used on front springs to MY14 Xkr. Quality is good, and worth the price . However found 2 caveats, 1) Not as Easy to compress spring to required size . Instructions state not to use an impact tool, and rightly so , so I had to use a breaker bar with pipe extension. Good luck on trying to keep the whole assy. from rotating . 2) When compressing spring enough, it began to 'Bow Out ' on opposite side of screw mechanism , this is not only dangerous but prevented me from inserting strut with boot etc. . Resolved by placing another compression tool on same side where bow occurred and compressing both at same time
Harry A. 
