normal for only one wheel (right side )to spin on occasion ,I realize Quaife is not a locker type rear,just wondering if anyone else has experienced this ?

No noises ,no issues,if I heat up tires on street both tires always spin,just noticed this at track with D/R on this past Friday,

 

are you getting the tires wet and flicking them first before your burnout? I have the quaife and both are spinning luckily.