2g Oem crank pulley

[warren]

So i haven't seen this anywhere else .
My friend with his 4g69 left his OEM crank pulley at my house . Ive put it on my car
And it line up right and everything.
Question his can I run with it ?
It's lighter than our does have the aletetnator pulley on it or grooves.

 

[AndersonsDSM]

compare the 2 dimensionly, if they line up... you should be ok

 

[truesk83r]

Double check all measurements just to make sure perfect alignment and operation.