Saginaw pulley swap

[Dandesjar]

Does anyone know of a donor Saginaw pump that has the same sized shaft as the OEM power steering pump? I believe OEM is a 0.69” and the Wild Horses States all their pumps are 0.75”

I’d like to upgrade to a Saginaw but I have a really nice (and super-expensive) March aluminum pulley kit on my set up now and I’d really like to reuse the pulleys if I can.

 

[thegreatjustino]

Saginaw and Thompson have different size shafts and corresponding pulleys. They are not interchangeable in any configuration that I've ever come across. Two different manufacturers utilizing their own engineering and tolerances.

 

[sykanr0ng]

If the shaft for the Saginaw pump is larger than the OEM Ford pump can you get the pulley hole bored out to fit it?
Find a good machine shop, you want it to be wobble free when it is done.

 

[bronconut73]

I remember having this problem about 20 years ago.
I found that a single aluminum pulley for the Saginaw pump wasn't too expensive. Can't remember how much but remember being surprised at how cheap it was.

 

[Builtnotbought0]

I bought this one...works awesome

https://www.cvfracing.com/saginaw-p-series-power-steering-pump-5-8-keyway-shaft/

and its made in MURCA

 

[Dandesjar]

Thanks guys, I guess I’ll just buy a new pulley.

Is the P Series the appropriate Saginaw pump for the Bronco application? I’m in Canada so it’s a lot easier to source a generic Saginaw pump from a parts store up here than have one shipped from one of the Bronco vendors in the US. Anyone have a list of Saginaw pumps that will work?

 

[Dandesjar]

I bought this one...works awesome

https://www.cvfracing.com/saginaw-p-series-power-steering-pump-5-8-keyway-shaft/

and its made in MURCA

Thanks. I like the idea of dressing it up a bit with a chrome pump. Did you use this chrome bracket as well by any chance: https://www.cvfracing.com/ford-small-block-power-steering-bracket-289-302-351w-saginaw-pump/

Anyone know if this bracket will work?

 

[Attac]

Does anyone know of a donor Saginaw pump that has the same sized shaft as the OEM power steering pump? I believe OEM is a 0.69” and the Wild Horses States all their pumps are 0.75”

I’d like to upgrade to a Saginaw but I have a really nice (and super-expensive) March aluminum pulley kit on my set up now and I’d really like to reuse the pulleys if I can.

When i put my March Performance set on my Bronco i was gonna put a saginaw pump on. They stated that their kit doesnt work with sag pumps. I take that it was because of the actual mounting of the pump not the pulley since they make these kits for GM vehicles so they had to have pulleys for them. If you have their bracketry then the sag pump may not fit.
Mine was serpentine kit
Chuck

 

[Dandesjar]

Yeah, the March kit won’t work with the Saginaw. It also won’t fit properly if you are using a mechanical fuel pump. I didn’t realize they had this disclaimer until it was too late... oh well. I’ve made it work for now but it’s an extremely tight fit and I’d like to Swap it out for a Saginaw pump anyway for better performance and better clearance. That’s why I’m interested in the CVF Saginaw bracket - it has a similar look to the March bracket and it’s not that much more than the Wild Horses bracket by the time I also order the WH tensioner and pay for shipping. Curious if anyone’s tried it?