[ohhdude]

Thanks a lot guys for your help. Tomorrow i will go to Nissan and ask for the bearings .
Now i have two options
1) micro polishing the 60j00 crankshaft and using acl 0.05 or 0.025 bearings
2) using 60j45 crankshaft ( never polished and original specs.) with oem bearings
Which option is the best and durable for track days?
Are the bearings for "60j45(fwd sr20de)" and "60j00/10 (rwd sr20det)" has the same strenght or not?
Sorry about my bad English