Ehh, not sure. It is possible if you want to try, but I would not suggest it. Would probably be best to just get an entire new top assembly. its worth a shot, and if i do ill just pick up a new top assembly. could this be build into like a 10 since i already have a spare 10" basket here? That I am not sure of, but I don't see why not. I would suggest emailing Mach5 to find out any specifics in terms of rebuilding. It is a 2" coil motor, but as for specs, I don't have them. ok ill decide that after i try to fix the sub. and thanks for the input cause im going to pick this up just to mess around with it.