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I noticed today that MSA has begin to offer refurbished differential hanger brackets on an exchange basis. In their write-up on these new parts, they discuss applications in relation to solving the differential 'clunk' problem and emphasize that Series 1 owners will need to install the Series 2 differential hanger parts and moustache bar in order to be able to use the Series 2 front insulator (I believe that this is because the arrestor strap won't fit otherwise). This made me curious, so I started to look around some of the commonly-used parts vendors' websites to see if anyone was offering the Nissan Series 1 part (PN 55415-E4102, for reference). A quick look turned up 'not available' at Rock Auto and Chesapeake Nissan. Z-Car Source of Arizona offers only used units, and only on special order. Courtesy Nissan lists the part and a price, but that doesn't mean they have it or can get it (I haven't asked them yet). MSA lists it, but warns that it "...has been discontinued by Nissan or another manufacturer, and we are currently in the process of locating an alternate supplier or having the item reproduced" So: Is a new OE Series 1 diff mount/insulator definitely NLA ? If so, are there any known aftermarket options?

Wanted: a small amount of the original black firewall insulator material for restoration of a January 1970 car. Does anyone have some small pieces of *original* black firewall insulator material that mounts against the firewall inside the passenger compartment? ---see the photo below I need it for a restoration I am doing, and I want to retain the original firewall insulator that came in my car, but I need some small pieces of the material to fill a couple of voids in my insulator. I need about 10 to 15 square inches of the insulator material, but if anyone has a bit more than that it would be welcome. A piece that’s 3 X 5 inches would work. I do not need the jute material that’s glued to the back side of the insulator. I just need the stiff black insulator material. I will pay for the material and the shipping, which I think could be easily done by sandwiching the piece(s) between cardboard and mailing in a manila envelope. Below is a photo of the textured material that I need to match the insulator material in my car. ----------------------------------------------------------------------------------------------------------------------------------------------------- I know there has been discussion here of the firewall insulator before, and I don‘t want to redo that discussion, so…….. I want to retain my original insulator because 1) the aftermarket insulators are made of different materials than the original 2) the aftermarket insulators I have seen have a different pattern of holes and cutouts compared to the insulator in my car. Thanks! Pete