Today we are going to review part number T1544600042. This is the Titan trailer hub and drum assembly for 3500 pound axles with the 5 on 4 1/2 inch bolt pattern. Now this trailer hub and drum assembly will fit on axles that have an electric or hydraulic brakes. It does include everything show in here, the bearings, the races which are pre-installed into the drum, the double lip grease seal, the… see more >