looking for verification on a JRSC
 

hey guys....I am looking for some help....I am doing a jrsc setup on my b16a2...I am looking for the measurement on the 8lb pulley....from what I google searched and went on jackson's website....I can see that it should be 62.5mm. jackson wants to charge 200 usd for this part....which to me is a rip...I have talked to other supercharged owners and they all say that the pulley's are interchangable...meaning a grand prix gtp pulley would technically fit the charger....pretty much all roots style are the same...so I may be able to get one for free as a friend of mine has about 10 of them laying around...anyone confirm the measurement for me?

thanks for the help

VIPER