Today were going to take a quick look at Dexters Trailer Hub and Drum Assembly part number 84557UC3. This drum assembly is designed to work on 3500 lb axles. It has drum dimensions of 10 inches by 2-1/4 inches wide. The bolt pattern is 5 on 5-1/2 and you can measure that by measuring from the center of one stud to the center of the next. We get 3-1/4 inches which comes out to a 5 on 5-1/2 bolt pattern. Included with the kit are the races, bearings, seal, cap and lug nuts.
The races are already pressed inside into place so theyll fit over your spindle. Youve got the inner bearing which is L68149, the outer bearing L44649, the seal and of course the nuts and the cap. This drum has a capacity of 1750 lbs so when you pair it up with another drum youll get your total of 3500 lbs for the axle. Well go ahead and go over the measurements inside. Across the inside of the drum we get our 10 inches and for our depth we get about 2-1/2 inches which is enough space for 2-1/4 inch wide brake assembly.
And thats it for a quick look at Dexters Trailer Hub and Drum Assembly part number 84557UC3.
First off we will go ahead and take off the dust cap. In this case it is a bearing buddy. Next is taking out the locking pin, the cotter pin that goes through the center here. Once you have that lock washer off, just go ahead and take off the nut and pull your whole hub off. Now we are going to go ahead and inspect the hub and bearings here.
First off, we will take off the hub, then take off the nut on the inside, and we will pop the whole hub off and take it to the workbench and clean it up from there. You can see there is a lot of rust in there, there is a lot of condensation. Basically water got in there through either condensation or a seal leak. We definitely need to take it apart and clean it up. This has whats called a tang washer. Instead of a regular cotter pin that goes up and down, it has a little piece of metal that goes between the notches here and you have to push this back, flat, so you can take off the nut. And the whole thing just slides off. Sometimes if it gets caught on the hub here you can beat it to get it to come loose. We will go ahead and clean this spindle off here, and then we will put our hub back on. Give it a test fit first to make sure it all slides on pretty good and then go ahead and take it back off. What is good is to take a thin layer, it doesnt have to be much just a little bit, to kind of help the parts slide on a little bit more than they used to.
We get many many questions on how to make sure trailer hubs and brakes are safe for travel. Here Joe addresses some of those questions demonstrating how to thoroughly inspect the hubs, breaks and bearings. I know many of us take the performance of these assemblies for granted but if you are planning a long trip or just make short trips around town you should be aware of their condition. I like to say it is time well spent when it avoids break downs on the side of the highway.