9 inch rear?

[Jon114]

Hey guys quick question? Might be a dumb one but im looking at getting a rear here soon so ive been looking at the s60 and the 9". My question is, if i get the s60 ill have to buy a new driveshaft but if i get a 9" my stock style driveshaft will work right? The reason i ask is im trying to save a little money as i already have a spohn driveshaft hooked up to my stock 10 bolt. if i can get away with using that, ill go with the 9" . Ive heard that i will just need to get a 447 u joint to convert to the 1350 yoke. Is that correct?