So I'm trying to install K-Mac camber plates in the rear, with the ground control coilover kit, sectioned strut tubes, and tokico illumina struts. The issue I'm having is ensuring the strut top hat nut is torqued to spec. With the stock insulators, they notch in. However, the K-Mac has a spherical bearing and no such notch.
Here's what the strut looks like attached to the K-mac tophat:
The topside view of the strut and topnut:
The original setup / stock insulator, note the notch that locks the strut to the tophat:
About all I can get is ~25 ft/lbs on the assembly (using vice grips and a rag). To get it any tighter I'd risk marring the surface of the strut shaft, likely causing damage to the seal.
I have K-Macs on the front as well, but the MR2 tokico struts have a notch in the upper part of the shaft that I was able to lock into place with an open ended wrench. As you can see from the pictures, the 240z tokico struts do not. The only notching is in the threaded section, with is inaccessible once installed in the K-macs.
I'm honestly not sure how anyone could secure the topnut using this kit, the way it's designed. Assuming that ~25 ft/lbs is not nearly enough, does anyone have any suggestions at all for how to properly install this? Thanks in advance for someone pointing out something that I'm hopefully missing!