Originally Posted by mcfarmall
Couldn't tell you. Can you find out on Dexter's website? They probably have a manual online you could view or print out. You could just pop the old one out, measure the bore that the seal was in with some dial/digital calipers and measure the outside diameter of the spindle where the seal rubs, take the measurements & the old seal to NAPA, Applied or Motion Industries and get your seals from them.
I was reading through the stack of manuals late last night that the previous owner passed off to me and came up with the part number according to Dexter's literature. Then I searched through their website and got a cross reference between their number and a seal that etrailer has online and think I got it.
For anyone else who might come across this in the future the info you'll need is:
-10 x 2 1/4 brake size hub use Dexter K71-303-00 grease seal for E-Z-Lube version (cuttoff was year 1997 or 2003 forward)
-1.72" ID x 2.565" OD
-TruRyde RG06-050 matches up and costs about $6
Someone please feel free to correct me if I'm wrong.