Jay if you have a micrometer measure the thickness of the rod bearing, and that match it up with the guide in the FSM. grade 0 = 1.500 - 1.503 ( 0.0591 - 0.0592) grade 1 = 1.503 - 1.506 ( 0.0592 - 0.0593) grade 2 = 1.506 - 1.509 ( 0.0593 - 0.0594) Hope this helps. Louis Rosanova 95 200sx SE-R