Ways to Increase Tandem Axle Trailer Deck Height

Question

Question:

16 ft car trailer 3500 duel axle 25x1/4 leafs would like to rise it up some to low would you put the springs on top of axle or put longer spring mounts on? would you add all 3 or just the frount and back hanger?

asked by: Joe T

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Expert Reply:

The easiest way to lift a trailer's height is to install an axle over-under kit. We offer two kits, each made for a specific axle diameter. For a 2-3/8-inch diameter axle use kit # K71-384-00; for a 3-inch diameter axle instead use kit # K71-385-00. These kits will increase trailer height by close to the axle diameter; in other words kit K71-384-00 will add roughly 2-3/8-inches to the deck height while kit K71-385-00 will add about 3-inches. If one of these height increases will work then this is the way to go, both for low cost and easier installation.

If you need more height then you will have to install taller hangers, such as the kit you referenced, part # H248. You could leave the center hangers in place, and just replace the others, if you can find an equalizer with the correct height dimension to compensate for the other hangers being taller.

expert reply by: Adam R

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Answer 1

Ways to raise the height of a trailer for better ground clearance include using larger wheels/tires and installing an axle over-under kit that reverses the placement of the springs and axle. An axle over-under kit (we offer two) will give you a…

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Answer 2

Hey Lucas! I measured the Buyers Products Weld-On Receiver Tube #337RT25824B in our warehouse using my digital caliper, and it has an exact outer diameter of 2.54", so I don't believe it will work with your truck's 2-1/2" receiver.…

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Answer 3

Hey there Darin! The 6-Leaf Double-Eye Spring #EM86RB is a good possibility for your 2019 Grand Design Momentum 351M. From what I found, these typically came with tandem 7,000-lb axles and 3,500-lb leaf springs. Before ordering, you'll want to…

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Answer 4

Hi Brian! No, the EMCO 6-Leaf Double-Eye Spring for 7,000-lb Trailer Axles - 25-1/4" Long #TRU52FR are made in the USA. These springs have a weight capacity of 3,500 per spring and are a great choice for your toy hauler with 7,000 pound axles.…

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Answer 5

Yes. If you change no other components, the hanger length increase should directly correspond to the lift of the trailer. So, if you use a tandem axle kit like the Tandem-Axle Trailer Hangers for 1-3/4" Wide Double-Eye Springs - 3-1/4" Tall…

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Answer 6

Hello Lanny, thanks for reaching out. The CRE 3000 is already a pretty good suspension system, but if you want to upgrade, the first thing that comes to mind are the AllTrek 4000 equalizers. They have more rubber than the CRE 3000, 40% more, so you…

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Answer 7

The term, wet, in this case means that the head of the bolt has a grease Zerk in it and there is a channel that leads to center of the bolt. This makes it easy to grease the bolt while installed, as you can put a grease gun right up to the Zerk and…

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Answer 8

Hello Rusty, thanks for getting in touch. The Trailer Axle w/ Electric Brakes - Easy Grease - 6 on 5-1/2 Bolt Pattern - 89" Long - 5,200 lbs part #e75SR is our etrailer brand which is made for us by AxleTek.

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Answer 9

I have attached for you below some common torque values needed for a trailer suspension system but a lot of these will vary by bolt size and other factors. U-Bolts: Varies by Size - 1/2" bolts: 45 ft/lbs - 70 ft/lbs, 9/16" bolts: 65 ft/lbs…

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Ways to Increase Tandem Axle Trailer Deck Height

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