Correct Crank Pulley w/o A/C

[mgm1986]

Happy Friday folks! Looking to fix the wobble in my crankshaft pulley. And since it looks like the wrong pulley I thought I would replace it instead of repair it. Seemed easy enough until I started researching pulleys.

As you can see the pulley has three grooves but my car only needs two, Alternator and PS. I also noticed the size of the pulley is pretty large at 7 3/8" diameter, all three seem the same size.

Does anyone know what the CORRECT pulley would be for a base model 1968 Chrysler 300 440 without AC? Just Power Steering and Alternator. Thanks!

Pictures of the three groove pulley below for reference.

 

[mgm1986]

I am looking at this guy, does this look correct?

Double Groove Crank Pulley Non A/C for Mopar Chrysler Dodge Big Block 383 440 | eBay

 

[Big_John]

I am looking at this guy, does this look correct?

Double Groove Crank Pulley Non A/C for Mopar Chrysler Dodge Big Block 383 440 | eBay

Looking in the '68 parts book, that looks like the correct one... But double check...

 

[mgm1986]

Thank you, @Big_John . Probably should have waited to buy new belts then and not assumed the pulleys would be the same size. Maybe the belts will still fit even though the pulley is smaller. Learning ain't cheap!