Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.
Trailer hub-and-drum assembly fits 5,200-lb and 6,000-lb axles with spindles that require a 2-1/8" or 2-1/4" ID grease seal. Bearings, seal and grease cap sold separately.
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.
Video of Trailer Hub and Drum Assembly - 5,200-lb and 6,000-lb Axles - 6 on 5-1/2
Videos are provided as a guide only. Refer to manufacturer
installation instructions and specs for complete information.
Today, we're going to take a quick look at Dexter Axles, Trailer Hub and Drum Assembly, part number 42656. This hub and drum is designed to work with 5200-pound and 6000-pound axles. Basically, any spindle that requires a 2-1/8 or 2-1/4 inter-diameter grease seal. Its got a 6 on 5-1/2 bolt pattern. There are six studs and if we're able to accurately measure from the center of one stud directly across to the center of the other, we'd get 5-1/2 inches. The races are included and they're already pressed inside where they need to be.
You will need to add bearings. Inner bearing part number is 25580. Outer bearing is 15123 or you can simply use the bearing kit, part number BK3-100 or BK3-110 according to the seal dimensions that you need to use with your spindle. This drum has a gross capacity of 3000 pounds. So when you pair it up with another drum with the same part number, you'd have your 6000-pound capacity.
Now, we'll flip it over and take a look inside the drum. We'll take our depth here and we'll get about 2-1/4 inches. Go across the diameter inside and we get 12 inches, which means that this drum is set up for use with 12-inch by 2-inch brake assemblies. And that's it for our quick look at Dexter Axles, Trailer Hub and Drum Assembly, part number 42656.
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Average Customer Rating: 
5.0 out of 5 stars (5 Customer Reviews)
by: Phil G.03/20/2012
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Everything was as ordered and is for the correct application.34449
by: Randy, Randys Racing01/03/2011
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Quick service Ordered on Tuesday, Received my hubs, bearings and seals on Monday after the New Years weekend . Parts were shipped the next day after a late night order. Good service, parts were what i ordered with Free Shipping.. Most Excellent !!! Randy4970
by: Dan M.04/15/2012
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Received parts in timely fashion. Everything fit well.37282
by: Evert03/22/2012
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Perfect Exact Replacement for Dexter 8- 201-934730
by: Shane Mahoney03/15/2011
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The product is excellent — I boutght the four drums to go with the four new brake kits that I bought from you. But the seal/bearing instructions indicate that you can order either kit. So, I picked the one that seemed to have the outside washer included. Unfortunately, the kit I selected had 2 1/8" ID seals and I need 2 1/4" seals. Now I have to go out and buy new seals, which are much more expensive locally. The fault is partially mine for not locating and reading the "fine print". But etrailer could be helpful by saying in its instructions, "Select the kit that corresponds to your required seal dimensions."9374
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