MartinaIgnatius
22.05.2021 0:21:18
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Oct 04, 2011 #6 2011-10-05T01:39 more
If it ends up being a problem, I will probably do the axel flip. 4 or 5 inches would be worth the trouble. Now that I cleaned up the leafs and replaced all the U- bolts and other hardware it won't be as difficult.
Factory built trailers were designed to ride at a given height by the engineers who created them.
That said, not all were perfect designs.
Some can be raised with no I'll effect, some others as noted can become unstable.
Other considerations regarding ride height are worn and sagging springs, smaller replacement wheels, and tires that are shorter than the originals.
Oct 04, 2011 #4 2011-10-04T23:55
Dropper plates are normally manufactured from 1" plate, but if you have access to a gas or plasma cutter you can make your own from 1/4" plate/flat bar and laminate them together for super strong dropper plates.
For 3500 lb axles, the most common material for axle tube is 2" x 2" x 1/4" SHS (Square Hollow Section). For heavier duty axles, 2 1/2" x 2 1/2" x 1/4" or heavier is recommended and in some instances, 2" x 3" or larger RHS (Rectangular Hollow Section) sections can be used. here
Dropped axles can lower the deck height considerably and common drop heights are between 4 - 6". When used with an underslung spring setup, even more lowering is possible.
• Will there be sufficient ground clearance under the axles/springs especially if the trailer is to be used on construction sites or places where the ground is rough and bumpy. Tongue and chassis clearance will also be reduced and the trailer may drag when going over ramps and curbs. more
• The coupling mounting will have to be raised to compensate for the lowered tongue height. more
• The dropper will take up additional room within the backspace between the hub and chassis. Are your fenders wide enough to incorporate dropped axles while maintaining a suitable gap between the trailer and axle? Are your wheel rims big enough to take the dropper height? here
Choose wheels and tires for load capacity first, then think about size. If they won’t hold the load, then how does size even matter? Explore both trailer specific tires and automotive tires. Sometimes more plies allows a little smaller tire. Sometimes a wider tire allows a smaller diameter. And, sometimes you can go to a larger wheel with a lower profile tire for equal capacity. [links]
Choices that we make with the frame and with components usually have trade-offs. Considering the advantages and potential hiccups of those choices is a balancing act. As you work toward a lower trailer deck height getting the choices right will make a big difference in the pleasure of ownership.
Tires for the trailer are a big deal. In general, the smaller the tire, the lower the trailer deck. However, bigger wheels and tires will typically carry more. Choosing tires is a balance — for a lower trailer deck, you want smaller diameter tires, but they must have capacity for the load. Also smaller tires turn faster, so they can wear bearings more, and smaller wheels don’t allow as large a brake. [links]
Most trailer axles have mounting options for height. Leaf spring axles are the most common, and there are dozens of different mounting hardware options. This image shows both a tall and a short spring hanger. Obviously there are reasons for the tall ones, but for a lower trailer deck, use the short ones. (Just make sure there is adequate space for axle movement – suspension travel – up and down.) [links]
As you read about ways to achieve a lower trailer deck, please keep this question “Why do I want a Lower Trailer Deck?” in the back of your mind. Sure, it seems obvious, but sometimes our focus on advantages blinds us to a potential oops. We discuss Value and Hiccups in this post.
The distance from the axle supports, out to the hub face. Calculation: Overhang = (Hub Faces Distance – Mounting Position)/2. (Yes, that’s a circular reference from above.) more
There are more trailer axle details, but the list above covers the big ones. With this info, we can make the measurements for the trailer — or maybe more accurately — take measurements FROM the trailer (before ordering trailer axles). That way it all matches when we get them. more
For most DIY trailer builds, we recommend that you order the right axle for the needs. Sure, sometimes you can find an axle off-the-shelf at a store (or online), but will it have all the options you want? Will a “standard” size axle fit the functions of the trailer you want?
Just so you know, the Mechanical Elements Trailer Plans have all the necessary information listed to order the right axle(s). The information is in the instructions document, in the list of materials. here