> I am looking for a rear wide bumper. I would
> be grateful for any help in locating one.
Depends on where you live. Do you want new or used? Are you in a town that has a Z Club? If so, start with them. There is a club listing under the Miscellaneous, Links section on this forum.
Then try some local salvage yards that specialize in Z's or check the yellow pages under auto repair and talk to those that specialize in Nissan's. One may be able to help you. I know All Z Car Specialist in Fort Worth, (817) 483-0383 could probably help you out. So could Joe at Z East who has a posting on the forum today. You can get new from Nissan, Motorsport Auto, Victoria British, etc.
Hope this helps,