Rear end bumper

[392 Cuda]

I'm having trouble finding this rubber bumper above the rear U-Joint.

Does anyone know where I can order one, or what it's called?

[Skdmark]

That's a pinion snubber.
Is yours the single tab version?

Roseville has the double tab.
https://www.rosevillemoparts.com/product/rear-axle-pinion-snubber/

[anlauto]

Brewers sells the correct 70-71 style, but I don't think that's what you have, but could possibly make it work 

http://www.brewersperformance.com/proddetail.php?prod=DPSB

[Scooter]

Mine is exactly like that. Dr Diff has them.. but was OOS last I looked. I bought an entire NOS snubber with rubber installed off ebay for like $35.

GL

[Jay Bee]

The OP's car is a '74, they seem to be different

https://www.ebay.com/itm/MOPAR-NOS-1973-1974-CUDA-CHALLENGER-CHARGER-DART-8-3-4-REAR-END-PINION-SNUBBER/362766793343?hash=item547695fa7f:g:L6sAAOSwoPJdjO2-

[71vert340]

 The 74s are different. Here's the pinion snubber out of my 74 B-body. The rubber insert is different. I had to buy one off of Ebay. The rubber insert is not reproduced as far as I know.
Terry W.

[392 Cuda]

I appreciate the help!

I may try to condition and re-use the one I have.

Surprisingly doesn't look too bad, just figured I'd swap it after powdercoat.