Originally Posted by
Bingod
Would a 5503 crank work? If I can use my chainrings then this could be a cheap, albeit silver, alternative, that looks almost identical to a 3503, plus I can keep my old octalink BB. The few I've seen look pretty trashed though
Yes. 5503 would definitely work too. That one is also 9 speed. Same with 4403, 6503.
However there is no guarantee that the octalink BB would work because Shimano had changed Octalink like 2 or 3 times.