I did this conversion on my 67 1/2 ton. I believe that the 65 is the same front suspension as the 67. There may be others that are can verify this. The suspension that you are looking at is from a 71-72. 70 still used drums. You need to change the spindles, ball joints, etc. and lower A-arm. It may be that you don't need to change both ball joints but don't recall. Any way, it is a great time to replace with new. The bottom A arm at first glance looks the same but the steering stop is shaped a bit differently. You can use the early A-arm but your turning radius will be reduced. If available, don't forget the master cylinder and proportioning valve. You will also need to change front brake lines. Different routing and different fittings.
I you want to keep the 5 lugs, get the 5 lug wheels. I used 6 lug rotors and needed to find 6 lug 4x4 wheels from the late 70s. The original 6 lug wheels may not clear rotors (I believe there may be different designs).
If you are looking at 73 and up front ends, you need to change everything (cross member)
Hope this helps. This is a great upgrade and everything is stock bolt together.
