If both the inner and outer bearings on your trailer spindle are part # L44643, the # 8-258BTUC1 would work well for you.
This is a hub assembly that works with 13 to 15 inch wheels and has a 5 on 4-1/2 wheel bolt pattern. This assembly includes bearings, races, seal, grease cap, wheel bolts and lug nuts. view full answer...