1976 280z Automatic

About 18 months ago, I replaced all the rubber suspension bushings with urethane bushings underneath my car. This included the mustache bar bushings. Since that time I have had a lot of rear end whine, which I did not have before. I have read several comments from people that have had the same experience going from rubber to urethane. Thus, I have decided to go back to rubber on my mustache bar.

I am having trouble remembering the exact setup that was used for the rubber bushings. I know there was the rubber bushing that goes in the end of the mustache bar. Does it go in a certain way? I also can't remember how the serrated/alagator bushings were arranged. Was there two on top and two on the bottom of the bushing, with the serrated/alagator side next to each other and the flat side to the nut/washer and bushing? Or was there one on top and one on the bottom of the bushing with the serrated/alagator side next to the bushing?

I have a FSM, but it really doesn't detail the bushing that well. AtlanticZ has one or two pics that help some. Black Dragon really confuses me. It shows the break down real well, but it shows two washers (serrated/alagator???) that are grey in color, not black like the other parts. It looks like that these might be required, but don't really know. Maybe they are required and they don't carry them.

I thank all in advance for any help.

Did you replace the bushings or a shop? Even after 18 months it should be fairly easy to recall the rubber piece that was burned or hacked out of the mustache bar to install the urethane bushing. To install new rubber bushings you need to cut out the metal sleeve of the old bushing that was left behind, from the mustache bar.

The Rear Axle and Suspension chapter of the FSM has a drawing of the cross-section of the bushing and the washers. If you can't figure it out, post a picture of it here and someone can probably walk you through it.

Edit - Thank Blue for making it easier...