Does a HD rear spring/shackle hanger exist for a 68 Dart?

I happen to have a 64 Galaxie 500 here in the yard. The 63-64 Fords are neat cars.
My second HS car was a 64 FordCustom , circa 1965-6( post galaxie cousin) with a 289, it needed a BIG block!!! My fav Galaxies are 65 and 66with a big big block!