Can you change sheaves on a tra7 clutch?

Just wondering if a person can change the fixed sheave on a 2007 tra7 primary off another 2007 summit? The starter drive snap ring came off and damaged the inner sheave and was wondering if I can use the one sitting in a buddies garage off another 07 that had damage from a broken arm in the moving Sheave and governor cup or are they completely balanced? I see on brp part's online it shows all the pieces are available seperately so thinking its safe to do? Thanks for any info.