November 2, 201212 yr comment_405888 Dan, I am sorry for not getting back to you sooner although it seems you have had good advice and information from the best. The cartridges I have are self contained replacements for the original struts. You remove your factory strut parts and just drop these cartridges in. You do need to put oil in with them but only to act as a heat sink to the housing. JerryThanks, Jerry. As you and Carl B. have pointed out to me, my rebuilds are "Inserts" not "Cartridges" such as those you have. I did not realize that the Nissan made "drop in" cartridges for the 240Z.I thought that these drop-in cartridges were all after-market supplied, and I admit to not having any hands-on experience with this. The Seal Kits that I bought to do my rebuilds are part #54308-E4126 so, I'll leave it to the experts to figure out what was done to rebuild my struts/shocks. I apologies to all for my semantical misunderstanding, (or, as Rosana Dana Dana would say, Never Mind) but couldn't be happier with the job my shop did rebuilding my struts/Shocks with factory "Inserts". Dan Edited November 2, 201212 yr by AZ-240z Link to comment https://www.classiczcars.com/forums/topic/39665-240z-factory-cartridge-type-shock-absorber/?&page=2#findComment-405888 Share on other sites More sharing options...
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