Differences in 7.25 and 8.75 brake lines

i am looking at a complete brake line set from Inline Tube for my 67 Barracuda, V8, power disc brakes. However, their sets are only for 8.75 diffs and they don’t make custom sets. Anyone know if the set for the 8.75 is interchangeable on car with the 7.25 diff. If not, what lines are different?