Not sure I really understand your question. If you are trying to use ORD's Competition Motor Mounts on a 69, by changing the diagonal motor mount supports, I don't think that is going to work for you. You need to look at DIY4x's crossmember replacement for the 69-72 chevys. This is what I am putting in my 72 K5. This would be a better option for you and all the parts are there......no guess work. Good Luck!