I have a bearing and im not sure if its the oem size maybe u could help me out.

the lettering on it says

5 00
mb 4001
0.25MM
Lower


on the other side it says

D
clevite
77


I know its probably a dumba ass question for those of you who have messed with it, so sorry. but im still learning so just bare with me please, also if you oculd explain what the numbers mean i would appreciate it.

HERE IS THE PIC, ohh how the hell do you upload pictures here?


http://dsmtuners.com/forums/attachment.php?attachmentid=56053&stc=1]

the 0.25mm on the bearing indicates it's an oversized (.020" (?), or .25mm) aftermarket Clevite bearing.

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Factory Service Manuals: http://nawdu.de/files/

.25mm = .010 inches.
.50mm = .020 inches.

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