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Whas up guys and girls, im new to this forum, actually i dont even own a s or z chasis. I drive a R33 Skylline GTS-t here in Okinawa, anyway heres my prob...

i installed some second hand coilovers about a week ago and there is this irritating knocking coming from the rear whenever is hit a bump/pothole. Its coming from both shocks and its sounds like somethin in the top mount. I say this b/c i rode around with the back seats out and i pretty sure thats where its coming from. Ive done some searching on the site and saw that there are similar situations with you s chasis guys but i havent seen any soulutions. Does anyone have any advice or experiance with this problem? The coilovers are in good condition so i dont think the shock itself is bad.

Thanks