Radiator fan replacement

[Average Joe]

While I was adding the frame extensions to my truck (M35A2C) for installing a winch, one of the radiator fan blades fell out of the body. This leads me to conclude that a new fan is needed. I've been able to find 19"+ fans, but none have an 1&1/2" pilot bearing hole in the center. Does anyone know of a more modern, lightweight fan that will bolt up, or is there a spacer that will allow a modern fan to mount up correctly?
Auch, now that the radiator is drained of all its blood, I'm noticing how rusty the water pump is. I can't find a leak, but I shudder to think what the impeller looks like. Should I break the pump apart and check, or just replace the whole shooting match?

AvgJoe

 

[swbradley1]

I have wondered if you could pull the mechanical fan and put an electric fan or dual fan setup on the truck.

If my water pump looked really bad I would replace it. I keep a NOS one around just for that reason.

 

[gimpyrobb]

Be glad it happened while you were not moving! I had that happen while on the road and it took out my Rad.

 

[Kohburn]

dual and triple electric fans have been done with success. there are a few threads on it - I bought my fans but haven't had a chance to install them with a thermostatic control yet.

 

[Average Joe]

I'm ok staying with a belt driven fan, but I thought a flex fan might be nice. Thanks for the advice on the water pump; it reinforces my own instincts.

-Joe

 

[ARYankee]

Try this out. It is a Nylon Replacement Fan. Here is the info:
Made by American Cooling Systems Part# 449150-20
Vendor: www.americancooling.com
Distributors are listed in catalog.