Well the time has come to start the assembly, and wouldn't you know, the rear leafs won't reach the rear shackle mount with the arc in them, MP Part #P3690456 & #P3690457. I know these are for '64-'65 B-Body, but through all the reference, and info gotten from many sources, they should fit using the '63 stock front hanger, not the extended hanger for the later year models. It looks like they may fit with the extended hanger, but I'm concerned this will move the axle back, so it is not centered in the wheel well. I am now looking at MP Part #P3412002 & #P3412003, listed as '68 Super Stock A-Body Hemi springs. The front section is 20", like the originals, but the rear section is 36", 1" longer than the previous mentioned set, and listed for 3000-3200# cars. Has anyone run across this, in this application ? My other option is going to Eaton, and having a set made. My question with that is how much would I want to lift the car to fit a set of slicks inside the wheel well, as they offer 1-3" options over stock ? Posting this pic with the B-Body SS Springs. Any and All info is appreciated, Thanks