Ok, will tell is not posible to do it to couple of personal friends who already did it ( on a 70 Swinger and a 71 )

HEY GUYS! WHAT YOU ALREADY MADE IS NOT POSIBLE, GET IT BACK... WHAT ? DID YOU MAKE IT 8 YEARS AGO AND ARE USING IT ON THE TRACK SINCE THAT? WAIT! ITS IMPOSIBLE YOU MADE SOMETHING WRONG! GET IT BACK

LOL

Bud, trust me.

Even they seem to be, axles are not one piece

About all being 4.5"... I'm pretty sure they are since front discs become standard, but is true, can be wrong on that? And even still front drums were available, I think they become 4.5" too to get all standarized? Not sure