For the 89 and 90 suspension systems the difference is night and day. Take it from me. I had an 89 once and was on a quest to find someone who made a bushing kit. The lowest yr. was 90. At one point I was like will 90 fit an 89. The answer was always NO, but I'll sell it to you anyways, ofcourse...needless to say, I never located a bushing kit for the 89 Integra.