2000 M6 PEWTER SS

iTrader: (2)

Ok guys my friend just got a 91 rs camaro engine light code 24, has no speedo operation has already replace the vss sensor and no change whats next any input on any common problems in this area is appreciated. he thinks its the vss buffer or the cluster...if thats the case where is the vss buffer exactly located and what model and year gm product have the same buffer so we can track one down if its bad at a junk yard

thanks,