# Trailer Hub and Drum Assembly - 3,500-lb Axles - 5 on 5

Rating:
13 reviews

Code:   84556UC3

Price:\$64.95

Shipping Weight: 23 pounds

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### Dexter Trailer Hubs and Drums - 84556UC3

Trailer hub-and-drum assembly includes lug nuts, inner bearing (L68149) and race, outer bearing (L44649) and race, grease cap and grease seal. Fits 3,500-lb axles.

• Application: most 3,500-lb axles, including Dexter
• Drum dimensions: 10" diameter x 2-1/4" wide
• Bolt Pattern: 5 on 5"
• Includes bearings, races, seal, grease cap, wheel bolts and lug nuts
• Bearings:
• Inner bearing: L68149
• Outer bearing: L44649
• Capacity: 1,750 lbs

Determining the Bolt Pattern

The first number in the bolt pattern is the number of bolt holes. The second number denotes the diameter, in inches, of the circle on which the bolt holes sit.

On wheels with an even number of bolt holes, measure from the center of one bolt hole to the center of the hole directly across from it. (Example: 8 on 6-1/2 means 8 bolt holes with 6-1/2" from the center of one hole to the center of another on the opposite side.)

To determine the bolt-circle diameter on wheels with an odd number of bolt holes, measure from the center of any bolt hole to the point halfway between the two bolt holes directly across from the first. (Example: 5 on 4-1/2 means 5 bolt holes with 4-1/2" measured to a point halfway between the opposite bolt holes.)

Measuring the distance (D) from the center of one bolt hole on the wheel to the center of a bolt hole right next to it can also help to determine the bolt pattern.

• If D = 2-5/8", then the bolt pattern is 5 on 4-1/2"
• If D = 2-3/4", then the bolt pattern is 5 on 4-3/4"
• If D = 3", then the bolt pattern is 5 on 5"
• If D = 3-1/4", then the bolt pattern is 5 on 5-1/2"

## 84556UC3 Trailer Hub and Drum

Video of Trailer Hub and Drum Assembly - 3,500-lb Axles - 5 on 5

Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.

## Video Transcript for Trailer Hub Brake Magnet Replacement Demonstration

When one wheel does not seem to be stopping as quick as the others it may be because the brake magnet needs to be replaced. We put together a short video to help you recognize this problem and to show you how easy it is to fix it. Keep your trailer safe for yourself and others on the road by checking and replacing parts like the brake magnet when needed.

What we are going to do is show you a few comparisons here. We took off another hub on the trailer right next to it. What happened was you can see on the hub on the left hand side there are actually rings on where the wheel studs are. It is also supposed to be more a flat finish compared to the new ones on the right hand side there. What happened was the magnet that was designed to wear on the hub has actually been riding on the hub too long when the brakes were not being used. It just happens that way. What happens is it wears down and makes those grooves and makes an uneven finish. What that uneven finish does is make the magnet not work so well. Like in this instance we had 3 wheels that were working great and this one which was not. This one has those grooves in there so that just deteriorates the performance of the brake. There is nothing you can do but replace the hub or find a brake shop that can actually plane that inside of the hub down to make it a flat finish again. It may be hard to find a shop to do that such as in our case. So we are just going to go ahead and replace the the hub with a new one considering that the inside bearing was worn down also. Since the hub is worn down we will have to replace the magnet to match the new flat face thats going to be on there.

To replace our magnet here we have to do a few things. Release the magnet from this arm and cut these wires here. Also get them away from these clips here. Do save the clips because they do not come with the new magnet so you will need them to put it back on. First off we will just clip the wires off here. Next pull these clips off. Then to take the magnet off the arm you have to remove this clip here. The wires go through a fitting that kind of seals it off from the outside. What we need to do is punch that through from the inside. Now we just pass that junction and get some fresh wire. Then leave that alone and install our new magnet. We start off by installing our spring. It kinda just sets there in place. Slide on our new magnet. Make sure our wires are going the right way. It also comes with a new clip here that holds it into place. Lets go ahead and push that in. Might have to tap it on then make sure there is plenty of movement. If yours does not have that much movement maybe clean it up a little bit. Maybe a slight dab of grease but thats a last ditch effort. As long as it moves inside and out like that it will be just fine.

Now what we are going to do is slide our wire clips back on. Then we will poke it through the hole, run it back through the plate here and let that lie. We then put these back where they used to be. Then we will put our little wire fitting back on there. It is kinda hard to tell but what it does is sets it into place and pushed together. Then it comes back through the plate. Once it gets plugged back into place we can redo our connections. Just for reference the magnets do not care about polarity as long as one wire goes to absolute ground and one wire goes to the power. We will go ahead and make some our connections with quick splices. Then our magnet install will be complete. We are using a gel filled quick splice. They work better for outside use. Take those and zip tie them to the back so they will not flop around or anything. Now we can just reinstall our hub.

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Customer Reviews

#### Trailer Hub and Drum Assembly - 3,500-lb Axles - 5 on 5 - 84556UC3

Average Customer Rating:  4.9 out of 5 stars   (13 Customer Reviews)

- 84556UC3

by: Ron D.04/20/2011

As always excellent service! 12068

- 84556UC3

by: danny macklin03/30/2011

Excellent Customer service and very high quality parts10718

- 84556UC3

by: Mariano macias04/29/2013

Great parts, great price, everything fits right on my trailer again thanks!78413

- 84556UC3

by: Eric03/29/2013

Thank you so very much every thing was perfect 73171

- 84556UC3

by: Ken O.12/18/2012

Great looking drum and a great price! I appreciate the free shipping too! Shipped quickly and had good communication via emails. Thanks!61749

- 84556UC3

by: Glenn S.09/27/2012

The drums were shipped in good condition, even UPS could not beat them into submission, just another great product from "etrailer".55883

- 84556UC3

by: chris w07/31/2012

easy to put on the trailer 49988

- 84556UC3

Fast shipping, great quality products and the best prices anywhere. etrailer did it again.45830

- 84556UC3

by: Esquire06/19/2012

The hub looks good and included all new bearings and seals. Overall a good product for a very reasonable price (about \$15 cheaper than the local trailer supply place). 44805

- 84556UC3

by: Joel F.08/27/2011

What can I say, "Made in the USA", thanks Dexter and etrailer! Wonderful easy replacement.22938

- 84556UC3

by: Bill08/01/2011

Very nice items. Change over to a brake system was smooth and easy. Thank You, Bill20645

- 84556UC3

by: Larry07/28/2011

All parts came in as ordered ,have installed on my trailer all works fine was very easy to install.And when I made the order was easy to look up the wright parts needed..20472

- 84556UC3

by: Gud Racing05/27/2011

Quick shipping nice product. 15515

• Does The Trailer Hub and Drum Assembly Come Assembled Greased and Ready to Install
• The Trailer Hub & Drum Assembly, part # 84556UC3, comes dry and not greased or assembled with bearings installed. The races are already installed, but you will need to grease the bearings and install them into the hub. The assembly does not come assembled and greased because dirt would be able to get into the bearings from the exposed open side and your bearings could be ruined. I have linked a video below that may be a good reference to take apart and assemble your new hub and drum assembly,

• Can a Drum Hub Be Used with Hydraulic Brakes
• Yes, as long as you have a 10 inch hydraulic brake assembly like our Titan Free-Backing Hydraulic Trailer Brake Assembly # T4071500 you could use the Trailer Hub & Drum Assembly # 84556UC3 with a hydraulic brake assembly.

• How To Measure the Bolt Pattern on a 15 Inch Wheel With 5 Lug Bolt Holes
• When measuring to determine the bolt pattern of a wheel with an odd number of lugs, like a 5 lug wheel, you are basically measuring the diameter of a circle that would run through the center of each lug hole. If you are measuring the wheel the easiest way is to measure the distance between the center of one lug hole to the center of the lug hole adjacent to it, then look on the chart and if that measurement is 2-5/8 inches the bolt pattern is 5 on 4-1/2. If it measures 3 inches the bolt patte

• Can Brakes be Installed on Only One of the Axles of a Tandem Axle Trailer
• Brakes can be installed on only one axle of a tandem axle trailer, however you should first check your state laws to see how many brakes are required for the gross vehicle weight rating (GVWR) of your tandem axle trailer. Some states require a specific number of brakes based on the maximum weight capacity of a trailer. If you are able to install brakes on only one axle, I recommend installing them on the front axle. The front axle will bear more weight than the rear axle (see photo) and in b

Info for this part was:

Written by:
Lindsey

Edited by:
Leah

Test fit by:
Patrick

Video by:
Zack

Expert Research
Bob

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