I have a 1976 MTD 990 that had the smaller hubs in the front with the three lugs. They have of coarse small bearings in them. I bought some larger hubs that have larger bearings. What year did MTD use the larger hubs. I will be using the larger hubs but my manual only shows the smaller hubs. Both sizes have the 3/4" spindle. I know there is a rubber cup of sort that goes in the hub to keep dirt out. Does anyone have the part number for these...should be one on each side of the hub. Thanks
The one on the left came on the tractor & the one on the right is the larger. I ordered new bearings for these since they were worn out.