What's the difference in an HPQ?

[87action]

6768?



just curious to what anyone thinks about this exhaust wheel, P-trim or gtq
These are some older parts I've accumulated and may want to put to use, has some up band down shaft play that needs to be addressed

 

[forcefed3.8's]

That exhaust wheel looks like an old Q trim. GTQ has 10 blades.