i would call hays,,not wait on a return e mail,,,
im not saying its not impossible,,,but i doubt the hays came new not functioning correctly,,,some thing went wrong during the installl,,,
and i dont agree centerforce is not pricy compared to a ton of other clutch makers for street cars,,,i see several advertising in mopar magazines starting at 799.00 1200 .00 ..
i have run rebult plates,,,new hays plates,,i have 2 used in working order hays plates,,but they are a heavy plate,,and wil make a A body fire wall flex if is is not reinforced,,,
for a street car that is warmed up,,,in my opiniopn you cant beat a dual friction centerforce,,,i have 33 tall x 22 in wide tires,,4 link,, and a super charger,,centerforce,,is like less then 400.00 for the hole package,,,works great,,,roller assist too