Geoff, all the info I have comes back to the same seat numbers. I checked the applications on some other cars I owned that had a Saginaw gear (three Gran Torino Sports and a 79 XR-7 Cougar). All came back to the same part numbers.Steve, thanks so much for digging this up for me. I likely will buy from McDonalds as they still have both E and F balls in stock. I will email Green Sales as well, but I don't think they had the sizes ball sets I want. Just to be sure, the seats you mention do fit the Saginaw 800 PS box, SPA-T in my case? I do not know exactly when that version came outGeoff, I don't have a lot of pre 1965 info. The 61-64 T-Bird only part (C5AZ-3647-A R/B C5AZ-X) evidently picked up the 1965 level part number when the 60-64 MPC received it's final revision in 1969. The only size related number I see for the "X" ball is .25" diameter.
The inlet (pressure) and outlet (return) brass seats have Ford hardware numbers and not the typical Ford formatted part number.
The pressure seat is 374309-S It is 7/16" dia, top orifice is 9/32" with a 5/16" seat
The return seat is 374480-S It is 3/8 dia, top orifice is 9/32" with a 3/8" seat
If you have a favorite parts supplier you may want to check with them. I have have used Green Sales (1-800-543-4959) a few times and they show stock on the 374480-S. The 374309-S I have seen on E-Bay and is still available from Ford. So you may want to check with your local Ford dealer to see what he has. I believe Canadian dealers may be on a different parts locator system from the US dealers so I cannot verify what they may have.
Let me know if you have any problems with the numbers.
Stay tuned!!
Geoff.
The link DonC posted looks good as the seats appear to include a installation tool. You could also try contacting that company and ask about the 24 spool balls and see if you get the "Deer in the Headlights look" and hear crickets chirping. :whistling:
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