Need some advice on this one. I am looking at purchasing a 90 civic with a jdm b18c and s80 lsd hydro. It only has 5000 miles on a fresh swap. Everything is working perfect but he put Tein lowering springs and now has slight vibration until around 3500 rpm and then it goes away. No vibration through the powerband. Its only slightly lowered, he really believes its the axles. he used the gsr axle and the 90-93 da axle (autozone da axle). Its very solid otherwise and a clean si. Could this really be an axle issue or is it something I should stay away from? Good deal too... Thank you.

 

DC axles are too long for a CRX... especially a lowered one... so, it could be that simple. Look into getting all three DA style axles... and you may have to change axle seals in the hydro trans to cable style seals for a leak-free install.