Revshift Flex Disc Installation
Jack the car up on all four corners and use jack stands. Put it in neutral with the parking brake off because you will need to rotate the driveshaft. Drop the exhaust (mandatory, you won't be able to access the flex disc bolts with the exhaust in place). Mark the end of the driveshaft and the transmission flange, so that you can reconnect things with the same orientation. Use a breaker bar to loosen the 6 bolts. Remove the six bolts. Be ready to support the front of the driveshaft with something so that it doesn't sag more than 4"-6" (it feels like it might slide out of the central joint if it's not supported). Remove the rubber flex disc and insert the Revshift part and use all six bolts to locate things together. Install the nuts on the drive shaft side bolts. Use the extra washers Revshift includes. At this point, if you notice that the surface of the disc and the flange coming out of the transmission are not parallel (If things touch in one spot but have a gap in another, read the section below). Rotate the driveshaft and bolt it together at the top, to ensure that the extended sleeve is properly positioned before tightening each bolt. Torque the bolts in an opposing sequence to 25 ft-lbs and then 50 ft-lbs. Manually spin the driveshaft and check for runout in the center support bearing. If it is not spinning centered retorque the flex disc bolts and check again. Reinstall the exhaust, drop the car, and go for a test drive.