I'm rebuilding steering, clutch pack (2ea) and bevel gear seals/bearings. Empire Cat says they have the following parts: 4B4967, 4B3675, 2B9338--still need the following parts: 4B5353-steering crank bearing-2ea, 1B3890-cross shaft bearing cone-2ea, 1B3891-crosss shaft bearing cup-2ea. Dimensions of the bearings and races will work also. Had to do that on my D4-Timken had the parts cross shaft bear and race.
If you can't get 4B5353, you can always use a plain bushing, if it's the needle bearing in the top of the transmission case. Folks have done that previously