7.25 rear end dimensions

Long story short. I yanked my a body 8.25 rear end out of my barracuda and installed an a body 8 and 3 quarter in it. Gonna give the 8.25 to a friend of mine so he can upgrade his 7.25. Do any of you guys know the outside of drum to drum dimension of the 7.25 or would it be the same as the 8.25 ? (wheel backspace is in question)
Thanks