Sure grip question

gregpurcell said

BTW you do NOT have to remove the center thrust pin to run green bearings but you DO have to have them to run stock bearings. If they are in, leave them be. (Before the trolls start, This has been verified by Dr Diff)

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So how come when I tried to reassemble the axles with Green bearings the 2nd axle would not go in all the way? Once the buttons were removed, the axles went in all the way. These were stock axles with a Dr. Diff center section. And no, I am not a troll.