Just so I'm 100% clear on an 8 3/4 swap!!!

I'm buying a 65 Dart to swap out the rear in my 68 Dart convertible (mine has a 7 1/4 and this is an 8 3/4). I've seen some references that mention 66-76 swaps easily. Others say 65 and up. Attaching pics in the hopes someone can confirm this will work (before I drive 4 hours and buy a whole car). Thanks in advance

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Yep, that's a 8 3/4