Trailer Axle Over-Under Kit to Raise Height of Trailer

Question

Question:

Which triple axle kit will be best to replace a trailer frame to get the most height and best ride

asked by: Travis M

0

Expert Reply:

You can increase trailer height by welding on taller spring hangers but there is also another way to lift a trailer without having to cut off the old hangers and weld on all new ones, an axle over-under kit.

Kit # K71-384-00 for 2-3/8-inch diameter axles and kit # K71-385-00 for 3-inch axles are bolt on kits that place your leaf springs above the axles, as shown in the linked photo. The amount of lift you get will be the sum of the axle diameter plus the height of the spring stack. So, if you have 3-inch axles and 2-inch tall spring stacks kit # K71-385-00 will give you 5-inches of additional height. You will need one kit per axle.

Any method of raising the height of a trailer will naturally raise its center of gravity and this may allow for a little more sway than you're used to.

expert reply by: Adam R

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Answer 1

The Dexter Heavy Duty Suspension Kit #K71-360-00 is designed for 33 inch axle spacing. To add your third axle, you cannot simply add a hanger spring and axle. You can keep your 35 inch spacing but you will need to relocate your hangers. I've…

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Answer 2

The first thing I would check on is the capacity of the new springs that you had installed on the trailer. You need to be sure that the spring capacity is rated at 1/2 the axle capacity. That way 2 springs equal the capacity of the trailer axle for…

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Answer 3

Based on the picture you provided you will need to replace the center hangers on your triple axle trailer with the Center Hanger for Double-Eye Springs - 5-7/16" Tall - 3/4" Bolt Hole #115919 which is just under 2-1/4" taller than the…

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Answer 4

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 5

According to Blue Ox, it'll take an experienced installer about 4 to 5 hours to complete the installation of their #BX1128 Base Plate Kit on a 2016 Jeep Grand Cherokee. The install isn't what I'd call super-difficult, but the installation…

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Answer 6

Hey Bryan, that's a good question. The pricing can definitely be misleading, but I wouldn't use it to judge the quality of the tire. A lot of that comes down to promotions, inventory, and whether you're looking at a tire by itself or…

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Answer 7

Hi Paul, you’re definitely on the right track here, and I can help you narrow this down with confidence. With your tandem 3,500 lb Dexter axles and 33 inch spacing, both the Dexter EZ Flex part #K71-652-00 and the Lippert Road Armor part #LC53CK are…

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Answer 8

It sounds like you are speaking of the wires for the brake magnets. If this is correct, you will need to connect one of the wires to the brake controller output wire on your trailer connector and the other wire will need to be grounded to a clean…

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Answer 9

The #84 spindle is just a common way to identify the spindle dimensions typically used for 3,500 lb axles. So instead of listing out the parts, people can just say they have #84 spindles and it's easier to know what fits it. The CE Smith Trailer…

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Answer 10

You can use leaf springs that are rated higher than the axle without any issues as long as they measure the correct measurement for your trailer. For example the 6-leaf double eye spring for 7,000 lb axles part #e64SR measures 24-7/8" eye to…

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Answer 11

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 12

Hi Calvin! All of the pre-greased hubs/drums, like the Terran Industries Trailer Hub and Drum Assembly - 3.5K Axles - 10" Diameter - 5 on 4-1/2 #TX68VJ, come with bearings made overseas and are all basically the same quality. At least that I…

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Trailer Axle Over-Under Kit to Raise Height of Trailer

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