Replacement 3,500LB Spindle and Idler Hubs For Obsolete Trailer Spindle 1.375" Inner, 0.75" Outer

Question

Question:

my trailer spindle diameters are: Inner = 1.375 outer = 0.75 seal = 2.00 What spindle is this, what idler hub do you have for it?

asked by: Phill

0

Expert Reply:

You are going to need to install 2 new Spindles # TRU74FR as your spindles are obsolete. These new spindles are the size commonly used on 3,500lb axles. It will allow you to use one of the idler hubs below depending on what bolt pattern your wheels are.

5 on 4-1/2" # AKIHUB-545-35-EZ-K
5 on 4-3/4" # AKIHUB-5475-35-EZ-K
5 on 5" # AKIHUB-550-35-EZ-K
5 on 5-1/2" # AKIHUB-555-35-EZ-K
6 on 5-1/2" # AKIHUB-655-35-EZ-K

expert reply by: Bud M

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Answer 1

CE Smith #CE13611 works for your application. Double check the bearing numbers on your stock hubs before ordering, but for 3,500 pound axles there is usually one size of spindles. If your current hubs have an L68149 inner/L44649 outer bearing, the…

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Answer 2

Yes, it is probably safe to assume that a hub using the same bearings will fit the spindle on your trailer. I'm not sure what "older" is so you may also want to measure the spindle to find the inner diameter of the grease seal. Or if…

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Answer 3

The #99 trailer spindle is typically found on 9,000 lb and 10,000 lb axles. This is not a spindle that we carry at this time, but I did find some of the measurements. I have attached a diagram showing the dimensions of a #99 spindle for you to check…

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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

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 6

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 marked…

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Answer 7

To determine the size of the brake assemblies you need you have to measure the depth and width of the hub drum on the axle like what you see in the picture I attached. The most common size is 2-1/4 inch wide like the #T4071600-500 that you…

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Answer 8

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 9

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 10

The Trailer Hub and Drum Assembly part #AKHD-545-35-K is the correct replacement for an AL-KO 7230. In regards to the braking assemblies, I suggest getting a new pair, the Electric Trailer Brake Kit part #AKEBRK-35-SA. This option will save you some…

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Answer 11

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 12

The torque for the Dexter Trailer Hub and Drum Assembly - 6,000-lb and 7,000-lb Axles - 12" - 5 Spoke Utility #8-174-5UC3 is not specified by the manufacturer. For 9/16 inch studs, the typical lug nut torque will be 120-140 ft lbs based on most…

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