fyrst.z

Thanks @Joseph@TheZStore and @KONI Lee. Your comments helped me a lot. I've cleaned the bottom of the strut housing (using a rag and long screw driver) and more importantly realized that I was trying to put the old strut gland nut back on rather than using the one that was supplied with the Koni's. Should have known better but should be golden now!

Thanks for the great clarity @KONI Lee. I got the Koni 8641 1031Sport yellow strut cartridges for my 240z (December 1970 production date). Installing the front passenger side now. Diameter is fine but they seem to sit a tad higher than the cartridges they are replacing (it's like there's an extra little shoulder) and I'm not able to get the strut gland nut to catch the threads inside the strut cartridge. Does anyone know if there is a trick I'm missing? Or, are different types of gland nuts that might account for this? I ask because the driver's side was also challenging but I did get the gland nut threaded on. However the glad nut seems like a slightly different design on the outside (it didn't occur to me to check the design of the the inside). Thanks for any advice.