Looking right licence plate Pocket part #GM - 12377102.
2nd gen rear Jimmy / Blazer bumpers i've seen the licence plate lamp sits proud.
On Envoy's, the bumper cover is different, where licence plate lamp holder has a bezel (GM parts book calls it 'Pocket'), that hides licence plate lamp holder/ lense.
Also looking for the drivers power seat flexible drive cable and tube located at front of seat. This drives forward / aft seat tracks.

GM bumper parts parts diagram look for #12
https://www.autopartsexpress.net/v-1...omponents-rear

Picture of bumper with Pockets before I lost the right one.
Thanks

 

You might need to go to a wrecking yard for that.

 

Yes... Have been looking but Envoy's are rare. Maybe Diamond Editions or Bravada have them too???? If anyone spots an Envoy in wrecking yard, please let me know or grab both for me, $30 bucks maximum.
Thanks

 

Those don't interchange side to side and are an Envoy only item.