How To Check If A Different Bolt Pattern Hub/Drum Will Be Compatible With Your Axle's Spindle

Question

Question:

Hello, I have a trailer with Dexter Trailer Hub and Drum Assembly for 3,500-lb Axles - 10inch Diameter - 5 on 5 and I would like to change to the 6 on 5.5. Is this Item # 84656UC3-EZ the correct assembly to make the change I would like make to? Please see the uploaded photo of my current 5 on 5. Thank you for your help.

asked by: Christian L

0

Expert Reply:

To determine if the Dexter Trailer Hub and Drum Assembly for 3,500-lb E-Z Lube Axles # 84656UC3-EZ is the correct fit for your trailer you'll just need to check the grease seal and bearings. This hub/drum kit uses inner bearing # L68149 (1.378" inner diameter), outer bearing # L44649 (1.063" inner diameter), and grease seal # 58846 (1.719" inner diameter). If we look up the 8-249 number stamped into your drum it comes back with the same bearings and seal so you would likely be fine but it's always best to double check.

You can remove the hub and take a look at the seal and bearings to see if the number stamped into them is still legible enough to read or measure the spindle with a set of calipers at points B, C, and D to confirm.

expert reply by: Kevin C

0

Spindle Bearing Measurements
(click to enlarge)

8-249 Hub/Drum
(click to enlarge)

Answer 1

In order to determine the torque rating for the lug nuts on your trailer you will need to know check out the chart I attached that shows all of the torque specs for all the trailer lugs available based on stud size, wheel material and wheel size.

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Answer 2

To determine the size of the hub assembly you need to purchase you have to determine which bearings are in the old assembly. If the old assembly has L44649 inner bearings, you would use the hub you chose #8-258-5UC1. If the inner bearings are…

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Answer 3

Trailer wheel bearings are specific to the spindle that is installed on the axle that is on your trailer. You will need to safely support the trailer, remove the wheel and tire, remove the grease cap, remove the cotter pin and washer that secures the…

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Answer 4

A BT8 spindle would have a diameter of .99 of an inch where the bearings would both install and would have a diameter of 1.24 where the great seal would ride. That would require a hub part #AKIHUB-440-2-1K for an idler hub. A BTR spindle would have…

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Answer 5

You will need to measure the diameter of the spindles where the seal and bearings ride. Check out the picture I attached that shows where this is. You will need an exact measurement so either a digital or dial caliper will be needed. To pick out the…

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Answer 6

To find the load capacity for your axle you should look on the trailer VIN plate or sticker that lists the VIN number. The weight rating of the axle should be listed on that same plate or sticker. Also, the axle could have a tag or plate on it that…

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Answer 7

Even though I cannot comment specifically on the grease you used because I am not familiar with it, I can tell you the best grease for trailer bearings is a a grease with a rating of GC-LB, which just means it is made to withstand very high…

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Answer 8

That's a very good question, we tend to be extra cautious and say to use 10 gauge wire because that would be more than enough. When you get into longer trailers that will end up using a lot of wire the heavier gauge wire becomes more necessary.…

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Answer 9

In order to verify the spindle dimensions so that you can pick out the correct hub/drum you have to get exact dimensions. For that you need to use a digital caliper like part #PTW80157. For how old your trailer is this is especially important as the…

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Answer 10

If you remove the hub and wipe away the grease on the spindle you can check to see if it is damaged. Look for an scarring, gouges, discoloration, or scoring on the spindle. If the spindle is damaged then the bearings won't ride properly and can…

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Answer 11

The difference between an load range C and load range D tire in the same size is the capacity and psi rating. The two tires will still have the same dimensions and fit on the same wheel. The D rated tire has a higher capacity. For a ST175/80D13 like…

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Answer 12

The spindle dimensions are as follows: A is the mounting dimension, B is the seal dimension, C is the inner bearing surface, D is the outer bearing surface and E is the diameter of the threaded portion of the spindle for spindle nut selection. Say…

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How To Check If A Different Bolt Pattern Hub/Drum Will Be Compatible With Your Axle's Spindle

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