Help! Pulleys and water pump for 1965 with Trailer Tow package

[Carl K]

As you might recall, I am trying to re-create the towing package for my 1965 New Yorker with stock 413 engine and factory air conditioning. Does anyone have this on a '65 or '66 who could share a picture? I'd like to see the relative diameters of the water pump and crankshaft pulleys. Currently my car is a four belt system with two belts driving the alternator. I think the water pump is supposed to be the non-AC style (larger impeller) and is driven at 0.95:1 (slight underdrive). Supposedly there's a four groove crankshaft pulley (2465725) which makes this all work.

thanks,
Carl K.

 

[detmatt]

I have a stack of 4 groove pulleys, I'll see if there are part numbers on any of them.

 

[Carl K]

These are the pulleys I have now. Four belt system with AC.

 

[detmatt]

None of the pulleys I have have part numbers on them but I have 3 different 4 groove pulleys here so if somebody can chime in that definitely has the correct set up that we can use for comparison, that'd be great.