273 to 360 swap. same converter?

I bought an adapter ring for $20 from Charlie_S (or such) of Silver Springs, FL on this site. Search posts. As stated, you need it to center the torque converter. Same deal on slant sixes. The year change was around 67-68 and maybe aligns w/ switch to a cast crank (not sure).

1965 A-bodies still had the ball & trunion front joint (Detroit). I think identical to a 64- transmission other than the valve body may differ, since 1965 had the federal-mandated standard shift pattern (P-R-N-D-2-1). C-bodies were the true 1-yr only since a sliding yoke (new) with cable shift and park cable (old), though no push-buttons in the cabin.