Another frame swap questions 69 frame on a 64?

[kpc01]

I know there are tons of frame questions and even at one time I was looking into a new body frame for my 1964 C10. I'd decided to bow out on that idea but just had a friend that has a built frame for his 1969 suburban that he is getting rid of. I have a 64 suburban....how much would need to change?

I have searched threads and on the net and the best I can find is the body mounts are the only difference but looking for a little more info and someone that has a definite answer. I know both wheel bases are 115 but thats all I've been able to find.

thanks for any help!

cliff notes: Will a 69 c10 suburban frame work on a 64 C10 suburban pretty easily?