Bob-omb Posted December 21, 2014 Share Posted December 21, 2014 (edited) Hey guys, I'm doing a coilover conversion and switching to Koni shocks. I noticed the Koni gland nuts are rather loose in my 280Z struts. They are the correct 73.25.01.007.1 nuts (M51 x 1.5p), but they are about 0.5mm smaller than Monroe (or stock?) gland nuts I pulled out, and there's noticeable slop when threading them on. The Monroe inserts I pulled out have a spacer that, surprisingly, fits the top of the Koni insert perfectly. I'm considering just reusing those, rather than risk stripping the threads out when I torque down the Koni nut. Just curious if anyone else has noticed this, or had any issues with the Koni nuts in their 280Z struts. Koni Nut: Monroe Nut: Monroe spacer on Koni damper: Monroe spacer and nut on Koni damper: Edited December 22, 2014 by Bob-omb Quote Link to comment Share on other sites More sharing options...
thezguy Posted December 22, 2014 Share Posted December 22, 2014 (edited) I don't remember what shocks I was running but when I took my suspension apart during my rebuild I noticed all of the gland nuts where loose. I used some Home made spacers in the tubes and used thread tape when I re installed them to prevent backing out. I haven't had any problems yet. Edited December 22, 2014 by thezguy Quote Link to comment Share on other sites More sharing options...
Kevin.pk Posted December 22, 2014 Share Posted December 22, 2014 Wrong gland nut for 280z strut tubes. I did the same thing ordering the smaller size. Think it was listed wrong somewhere on this site. Correct part number is :PN 73.25.00.025.1 Size should be m52x1.5 Quote Link to comment Share on other sites More sharing options...
Bob-omb Posted December 22, 2014 Author Share Posted December 22, 2014 Thanks for the info, Kevin. 73.25.01.007.1 (M51 x 1.5p) is part number/specs listed in the "Strut Sectioning FAQ". Admins can you please confirm and edit the FAQ? JohnC can I send you the bill for these little pieces of gold? Quote Link to comment Share on other sites More sharing options...
johnc Posted December 22, 2014 Share Posted December 22, 2014 Send the bill to yourself for not making sure the part numbers were correct with the vendor your purchased them from. 1 Quote Link to comment Share on other sites More sharing options...
gnosez Posted December 22, 2014 Share Posted December 22, 2014 I ended up drilling a few holes in the top of the gland nut and welded two tabs on the strut tub itself. Then I wire tied it up before each race. Nothing like a drooping strut in the middle of a race. Quote Link to comment Share on other sites More sharing options...
Bob-omb Posted December 22, 2014 Author Share Posted December 22, 2014 Send the bill to yourself for not making sure the part numbers were correct with the vendor your purchased them from. Calm down...is joke... Anywho, the point is, 73.25.01.007.1 (what you listed in the FAQ) is the correct number for the M51 x 1.5p nut, which is the WRONG PART. Per your sage advice, and from my own experience, I ordered it via the part number rather than "hey, I need a gland nut for a 280z". The M52 x 1.5p nut is the correct part. Please edit the FAQ. Quote Link to comment Share on other sites More sharing options...
jhm Posted December 22, 2014 Share Posted December 22, 2014 (edited) If the shocks fit securely with the Monroe spacer and gland nut, I can't imagine why you couldn't use them vs the Koni gland nut. Just make sure that the shock body can't move around within the strut tube once the gland nut is tightened, and that the chrome shaft doesn't rub anywhere on the spacer and/or gland nut. Probably a lot cheaper to reuse these parts vs ordering new nuts from Koni. If there's any significant gap between the shock body and the inner wall of the strut tube, you can eliminate the gap with some beefy electrical tape to ensure the shock sits snugly inside the strut tube. I guess you could try to return the Koni nuts for a refund, or find out what vehicle they fit and sell as new/used parts. Good luck with the rest of the install...I'm sure you'll love the Konis! Edited December 22, 2014 by jhm Quote Link to comment Share on other sites More sharing options...
Bob-omb Posted December 22, 2014 Author Share Posted December 22, 2014 That's the plan. The Monroe spacer and nut are a perfect fit and don't interfere with the shaft. I'll inquire if these parts are available individually from Monroe. Might be a cheaper alternative to the $20 a pop Koni nuts. I should be able to return the Koni parts, no problem. I'll post what I find out about the Monroe parts. Quote Link to comment Share on other sites More sharing options...
jhm Posted December 22, 2014 Share Posted December 22, 2014 Yeah...some of this specialized hardware (e.g. Koni & Bilstein gland nuts) can get pretty pricey! Nice to avoid when you can. Quote Link to comment Share on other sites More sharing options...
johnc Posted December 22, 2014 Share Posted December 22, 2014 Make sure the top of the Koni shock is held securely in place. The shock relies on the gland nut to properly position the upper seal. Not a great design because if the gland nut comes loose the seal fails. Quote Link to comment Share on other sites More sharing options...
jhm Posted December 23, 2014 Share Posted December 23, 2014 "Make sure the top of the Koni shock is held securely in place. The shock relies on the gland nut to properly position the upper seal. Not a great design because if the gland nut comes loose the seal fails." Good to know...thx for pointing that out, John! Quote Link to comment Share on other sites More sharing options...
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