Bumper Difference?

I have a 1998 Z24 Convertible and I need a new rear bumper cover. Mine has two splits going down both sides of it. They were small but they are getting larger by the day. I did not know if there is a difference in the Z24 and non-Z24 bumper. I just thought someone on here would know before I head out to look for one at the junkyard. Thanks
DJP2

There is a small difference on the sides, the z24 rear sides flow with the z24 side skirts. 2.2 bumpers don't have the same rear sides.

http://i11.photobucket.com/albums/a175/PropsRI/000_0068.jpghttp://i11.photobucket.com/albums/a175/PropsRI/000_1102.jpg

Ah...OK, that clears it up a bit. Thanks for the pics too. I guess it helps to be able to see the difference when you own one of each! Later,
DJP2