7.25 Replacement

I'm a total klutz/ditz trying to search out things. Must be the "old fart" and computer litrit thing. Anyway, is there a larger axle assemble that is basically a "bolt in" to replace the 7.25 in my 65 Dart ? I don't mind having to dicker with the driveshaft or larger BP ( have 5 on 4" ) but changing perches or spring location is beyond what I want to get into. Gonna stick with drums.
THX from the arthritic old fart.
Author: admin