65 dart 4speed drive shaft

i recently bought a 65 dart gt with a 318/727 the 727 was in bad shape. i bought a 65 gt parts car which donated an a833 with drive shaft. my question is will this driveshaft be strong enough for the 318? i'm wanting to build the engine in the future. and also how strong are the a833 with the bolt on drive shaft? any info will be appreciated!