What Replacement Pinions Do I Need for My 3,500 Pound Axle?

Question

Question:

Just a clarification. I'm not looking to only change left or right. I'm asking if I can change left and right on the front axle and then keep the rear axle in place as it is.

asked by: Rob L

0

Expert Reply:

As far as the pinion/spindle, you can replace the spindle itself, but there are a few different options as far as the inclusion of a brake flange, the diameter of the end stub, and whether the spindle is square or round. I went ahead and linked all of the available spindles we have for a 3,500 pound torsion axle. As far as the installation process, you will need to grind/drill the old ones off and weld the new ones onto the axle.

If you want an easier solution, I recommend replacing the whole axle. For a complete system with the spindles and hubs attached, I recommend the Timbren Axle-Less Trailer Suspension System w Electric Brake Hubs - Straight Spindle - 3,500 lbs # A35RS545E. This system comes with a 5 on 4-1/2 lug pattern. If you want a system with the spindles without the hubs, that is the Timbren Heavy-Duty Axle-Less Trailer Suspension - Straight Spindle - Off-Road Tires - 3,500 lbs # ASR35HDS01.

With both of these solutions, I recommend making sure that no other components are damaged from the exploding hub. This is a safety precaution to make sure that there are no other components that need to be replaced.

expert reply by: Bob C

0

Timbren Heavy-Duty Axle-Less Trailer Suspension - Straight Spindle - Off-Road Tires - 3,500 lbs # ASR35HDS01 Dimensions
(click to enlarge)

Rob L.

1/1/0001

Just a clarification. I'm not looking to only change left or right. I'm asking if I can change left and right on the front axle and then keep the rear axle in place as it is.

Reply

Rob L.

1/1/0001

Just a clarification. I'm not looking to only change left or right. I'm asking if I can change left and right on the front axle and then keep the rear axle in place as it is.

Reply

Bob C.

10/27/2021

As far as the notion of changing out only a single axle, this will unfortunately not be a good idea because of the different dimensions (height/length/width) of the replacement axle. If you did try to replace only one side, the trailer could be lopsided. With that said, I recommend replacing both sides at the same time to avoid the imbalance.

Reply

Bob C.

10/27/2021

Thanks for the clarification. Unfortunately, we recommend that all of your axles have the same system/setup so that all sides will function he same. With that being said, I recommend using the Timbren axle-less system to replace all axles at the same time.

Reply

Answer 1

My contact at Timbren confirmed this kit includes wide spindles designed specifically for use with wider off-road tires so this should be a fine choice for your application. The Timbren 3500-lb Axle-Less Trailer Suspension #ASR35HDS01 is indeed…

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Answer 2

You are going to need to measure your current axles in a few places to get the correct one as we don't have a way to look up what you might need. You will need to measure from hub face to hub face and then from the spring seat centers. You…

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Answer 3

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 4

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…

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Answer 5

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 6

The difference between the Class II and Class III hitches has to do with their Gross Trailer Weight (GTW), their Tongue Weight (TW), and their Hitch Receiver Size. Class II trailer hitch receivers have a 1-1/4 inch receiver and can be rated up to…

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Answer 7

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 8

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 9

I did some checking and the hub/drum we offer that will work for you is the part #8-430-5UC3. This uses the same bearings as the 8-415 and will be an exact fit aside from the fact this is a non-ABS setup and the 8-415 came in an ABS setup and…

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Answer 10

Thank you for providing the specs for the suspension components that you already have. Correct hanger spacing really depends on the components being used such as springs, hangers and equalizers. Most of the hanger spacing dimensions that we have are…

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Answer 11

You will have to go with a sliding hitch to allow the trailer to make tight turns. For a trailer 8 feet wide the only bed length that's going to allow 90 degree turns without a slider is a stationary hitch. That being said you have two options.…

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Answer 12

A 4-Way trailer connector has the basic lighting functions only; running lights, left turn signal and brake lights, right turn signal and brake lights, and ground. A 7-Way has these functions and a 12 volt circuit, a circuit for electric trailer…

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