I have a 1967 Mercury Park Lane with a 9 3/8 rear axle. My question is, will a 9" pumpkin bolt into the axle housing and work properly with the correct axle shaft? It seems I read this somewhere but am not sure. And if not, does anyone offer a performance ring/pinion for the 9 3/8? thanks,alan c

a 9" is a direct replacement as long as the axle spline count is the same and yoke length the same
Frank