Looking for 9" rear end for 1968 base 302 4 speed

I am installing a 347 and am worried the 8" original RE wont handle the new power. Looking for a 9" RE to replace. Plan on using a Detroit Trutrac LS. Anyone have one on the west coast? I am in Alaska, so will need to ship it up here. Also open to suggestions if you have any on other options I might consider