Trailer Hub Assembly for a Haul-Master Trailer with 8 Inch 4 Lug Wheels

Expert Reply:

To determine if the Trailer Hub Assembly for 2,000 lbs Axles, # 34822BX, will fit on your trailer, we will need to know what spindle is on the trailer. The best way to make this determination is to remove one of the existing hubs on the trailer and acquire the part numbers off of the bearings and seal. You will also need to determine the bolt pattern of the original hub which should be 4 inches from the center of one bolt to the center of one directly across from it.

If your bearings and seal part numbers match the # L44643 inner and outer bearings and the # 34823 seal then this hub will fit on your trailer spindle.

If you cannot find part numbers on your existing hardware you can measure the spindle. A precise measuring tool, like a dial caliper, is needed to measure these dimensions. The inner and outer bearing surfaces should measure .99 inches and the seal bearing surface should measure 1.24 inches for the # 34822BX trailer hub assembly to work. The Spindle 1.25 inch RD x 4 inch Stub, item # R104BT8, is the correct spindle for use with the hub assembly you selected.

If your measurements are different than those above, let me know, and I will be glad to help determine the correct hub assembly for your trailer.

expert reply by: Bob G