rear axle 8.8" assembly from 94-04 Mustang will it fit a Duster/Demon/Dart sport?

IIRC, the axles from the SN95 Mustangs are a tiny bit wider...but will this be acceptable in a Dart Sport (like mine) or a Duster with the extra room in the wheel wells?

If so, what would be involved in the swap-- just welding on the spring perches?

Could the disk brakes be used too??

It's pretty convenient that they already have the 4.5" bolt circle axles.

Thanks for any info. Finding a limited slip 8.25" around here is a futile effort. :)