the rebuild instructions in the manual say nothing about compressing.what it shows is,reassembly requires a seal driver h/c 041324, p/n 07947-3710100.there are no springs to compress.after putting in the spring clip,guide bushing,back up plate a,12.5 oz. a.t.f., then it requires a seal driver to seat the oil seal,then back up plate b then the cir clip then the boot.i just need to find the inside diameter of the shock and maybe get the tool from parts n more because i already did a parts number search on Partzilla with no results.unless i can figure a way to seat the oil seal without the seal driver.