will turbo and n/a pulleys interchange without problems??
does S5 and S4 matter? are belt sizes different??

 

good question, im interested to know also...

 

All are the same.

 

thanks sureshot. i just replaced the pulleys today. you can interchange the accessory pulleys on the main crank, and you can also change the main crank as stated earlier. they all bolt on fine and there is no problem with installing them wrong as the bracket that holds the accessories will not allow you to install them wrong (only one way). thanks again.