64 vs 65 rear end

[Murfdawg]

I have a 64 c10 short bed with no rear end. I have a 65 c10 long bed with a good rear end. I swapped the 65 rear end to the 64 frame and used a new 65 tracking bar from LMC truck. I made the track bar work but it required a little persuasion to get it aligned in the frame mount. The bushing mounted to the differential is under a little stress. The original 65 track bar had a slight bend in it whereas the new 65 track bar is straight.
Is this okay or am I going to have problems?
There must be some differences in the track bar mount from 64 to 65 since the LMC catalog only lists the track bar for 65-66. But I don't have a clue what it can be.
Thanks for you help!