AMD 70-72 rear bumper brackets on 73?

[dave73chally]

Received my AMD 70-72 challenger rear bumper brackets but I don't get how these will mount. I've read on here they will bolt to a 73 rear bumper, do I have the wrong parts? Picture is the new and old bracket and backside of my bumper. 

[anlauto]

You need to toss the re-bar in the garbage as well.
I personally don't think the bolt holes on 70-72 bumper's are the same distance apart as the 73-74 bumper's, but if you read it on here, then it must be true. Usually you need to swap the bumbpers as well, if not for the bumper bracket holes, then at least for the bumper guard holes.

[dave73chally]

By re-bar you mean the inner metal bumper?

Anyone have pictures of how these brackets should mount?

[anlauto]

Yes the inner bumper is not used in 1970-72.

Here's a side by side...70 vs 73

[4Cruizn]

I have the 70 brackets on my 73 and they mounted right up . . . But I do believe I needed a 70 bumper as well.   

[Challenger6pak]

The rear bumpers are in three groups.  70-72, 73, and 74. The brackets and bumpers will interchange as an assembly on the 70-73 cars.  The 74 was changed slightly due to increasing crash protection.  Dave you now need the 70-72 style bumper.  You can drill new holes in your 73 bumper to use the older style brackets. I have done this and filled the extra original holes with bumper bolts that bolted to nothing.

[blown motor]

Will 70-72 bumper brackets bolt on without any modifications to brackets or car on a 74? Then I can just use 70-72 bumpers and get away from those 'lovely' bumperettes.

[Challenger6pak]

Will 70-72 bumper brackets bolt on without any modifications to brackets or car on a 74? Then I can just use 70-72 bumpers and get away from those 'lovely' bumperettes.

To the best of my knowledge yes.  I don't have 74's here to measure.  I know the rear bumper bolt holes in the 74 are different than the 73.  The 74 uses a different rear bumper bracket. What I am unsure of is if the holes are the same in the rear of the car for the brackets. I know the front bumper brackets will interchange as a bolt in assembly.