I was reading up on the power steering pump on our 77 F250 460 and saw the attached graphic describing two tags that will indicate the exact model of your Ford-Thompson pump. I knew I had seen such a tag but when I went out to take a picture and see what it was stamped, I realized that tag is actually on our power steering GEARBOX.

I believe some of the stamp is missing, but it definitely starts with 'SPA'. Can anyone enlighten us on this tag?



1977 F-250 Power Steering Box Production Tag





1977 F-250 Power Steering Box Production Tag

 

Right: P/S pump ID tag number located below part number.

1965/77 Ford P/S pumps have a steel reservoir, the P/S pressure hose threads onto the pump.

1978/79 Ford P/S pumps have a plastic reservoir and it's a different shape than the steel reservoir pump.

P/S pressure hose connects to the pump w/a qwik connect fitting.