What are Overall Dimensions of Typical Trailer Axle

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Question:

I am building my own axel and I need to know the distance between the spring perch and the hub. 3500# axel for a pull type smoker. Thank you

asked by: George W

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Expert Reply:

There isn't a set dimension for that on trailers. Typically axles are custom ordered to the specs needed. They order the spring seat to seat dimension for mounting to the trailer and then the hub face to face dimension for what will clear the fender wells.

For example, we have the 3,500 lb trailer axle part # T3584F-EZ-8974 which has 89 inches from hub face to hub face and then 74 inches from spring seat to spring seat.

expert reply by: Jameson C

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Answer 1

The wires on the Dexter Nev-R-Adjust Electric Trailer Brake Assembly #K23-478-00 are 12 gauge wires. We recommend using 10 Gauge Wire #10-1-1 from the trailer 7-Way connector to the brakes though to help ensure enough power gets to them.

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Answer 2

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 3

To determine if there are compatible hubs and associated bearings to replace your current hubs to a more standard size you will have to take several precise measurements on the spindle of your axle. It is recommended to use a set of dial calipers to…

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Answer 4

The only 7K axles we offer with straight spindles are the Dexter #8327834 axle you'd looked at and the same axle with brake drums/hubs, part #8327834-EB. These axles have a hub face to hub face distance of 95 inches and a spring seat center to…

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Answer 5

The equalizer in the Tandem-Axle Trailer Equalizer Kit #AP216 is 11-1/2" on center from the outer spring mounting holes when measuring horizontal separation. One hole will be 6" on center from the equalizer mounting hole center and the…

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Answer 6

There isn't a specific distance the hangers have to be for hanger kit #AP216-H238. A good place to start is 30-1/2 inches on center but you would only really know by mocking it up on the trailer before permanently installing the hangers. To…

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Answer 7

If you look at the backs of the brake assemblies there should be a hole where the magnet wires come out and a little opaque plastic strap. So if you are looking at the back of the assembly and those items are on the left then it is the left side…

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Answer 8

In the attached diagram the A measurement is actually the distance from the center of the spring hangers for a single axle trailer. The spring eye to spring eye measurement for your leaf springs will be slightly different. The B measurement that you…

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Answer 9

The big things we are looking for on the label are the weight capacity, hub face (HF) length, and the spring center (SC) distance. Your axle is a 4,400 lb 85" HF and 68-1/2" CS Dexter axle. I will tell you up front that we do not carry a…

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Answer 10

Based on the weight capacity you mentioned seeing on the spec sheet the best option for a leaf spring would be the part #SP-222275 which is for a 5,300 lb axle but is a bit shorter at 24-7/8 inches which is more common on the higher capacity axles.…

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Answer 11

That does make sense. We don't have an exact replacement for your application but if you check out the Dexter Trailer Axle Beam with 4" Drop E-Z Lube Spindles #7685269 you can see that it has 95" hub-face and 80" spring-center…

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Answer 12

The Lippert 5,200 lb axle you have has a hub face to hub face of 86.5 inches which is identical to the Dexter #8327816 you referenced, however the 68.5 inch spring seats of your Lippert axle are not identical to the 71.5 inch spring centers of the…

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What are Overall Dimensions of Typical Trailer Axle

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