1965 abody cross member change

grimreaper said
The crossmember from the 66 with an 833 will fit but it will need the notch just like the stock 65 crossmember.

Ok . so what year was the change to the cut outs for dual on the X-member then ? 68 and up for the 340's ? if so..............
would a 68 and up abody cross member work on a early abody then ?