What Year Rear

Hello. I have a C4 rear that I bought for a project and I need to know what year car it is from. Can anyone tell me a quick and easy way to figure this out. It came without calipers, rotors and emergency brakes so I can't use these to identify the rear. Thanks, Al.

If the tailight section is rounded outward, then the rear bumper cover is post 92. If it is rounded inward, 84 up to 91. That's just the bumper cover, many people have changed out pre 92 covers to the latter, though.

Thanks, but actually I'm talking about the rear axle.

In that case, is there a tag or anything stamped on it?

Hello, no tag, just a few numbers and letters in the carrier. I'll get those and post them. Thanks, Al.