On my '87 IS, I recently replaced the automatic tranny, guibo, and CSB. The car ran great for a week, then I began to get strange vibrations are certain RPMs. I got under the car and noticed that my new guibo was already breaking.
Totally baffled, I took everything apart and inspected. I noticed that the CSB was installed backwards and causing the driveshaft to hit the transmission at a slight angle. I corrected this and turned the CSB around. I reinstalled everything with a fresh guibo (CSB looked fully intact). The driveshaft appeared to be straight and at a proper angle to the transmission.
The car seemed perfect for the first few days (smooth at all RPMs and all speeds from 0 to 115mph), so I drove it HARD for the next 2-3 weeks (launching at red lights often and constantly hitting the kickdown). Now, just yesterday - the vibration is back. I'm almost certain that I chewed the guibo again.
Are there any known issues of guibos not holding up to hard driving?
When I get back under there, what should I look for? (assuming the CSB is still intact).
Totally baffled, I took everything apart and inspected. I noticed that the CSB was installed backwards and causing the driveshaft to hit the transmission at a slight angle. I corrected this and turned the CSB around. I reinstalled everything with a fresh guibo (CSB looked fully intact). The driveshaft appeared to be straight and at a proper angle to the transmission.
The car seemed perfect for the first few days (smooth at all RPMs and all speeds from 0 to 115mph), so I drove it HARD for the next 2-3 weeks (launching at red lights often and constantly hitting the kickdown). Now, just yesterday - the vibration is back. I'm almost certain that I chewed the guibo again.
Are there any known issues of guibos not holding up to hard driving?
When I get back under there, what should I look for? (assuming the CSB is still intact).
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