Someone with a endyn stepper pulley, would you happen to know what is the height of the inner core (hole) of the pulley is? It seemed to me that the pulley I got is too high thus the alternator core bolt doesn't have enough tread to tighten the nut down properly.

Stock JR pulley 11.5mm
Endyn stepper pulley 15.3mm

If you have installed it, how many tread actually show through when the pulley is put on (before the nut)..I was only able to see about 3 treads. I installed it but had to file down the nut flange to fit the socket and bolted the nut backward so it would have thread immediately. I used locktite too so hopefully it'll hold.

Many thanks to Jim (JRCivic) for his help on removing the alternator nut to estimate the height/treads etc..

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It's powered by GASOLINE damnit!!!