Found some other good info. For some reason, the pull force of the 1" magnet I posted, compared to the same size magnet on another site is massively different.
10.79lb vs. 60+ lbs. I don't know why there'* such a difference
Pull Force - The force required to pull a magnet free from a flat steel plate using force perpendicular to the surface. The limit of the holding power of a magnet.
EDIT: I'm really interested in these magnets. And I think they'd work really well on the trans pans as they will hold to steel like glue and pull all the metallic particles out of the fluid. After I get them on the pan I'm going to test and see just how much stuff these pull out of the fluid and take a few pics.