Can Front and Rear Trailer Suspension Hangers be the Same Height with Off-Level Leaf Springs

Question

Question:

I bought a kit and both front and rear hangers are 3inch centered with 2 3/4inch rear shackles. How do I mount these or should I go with a shorter rear hanger to keep axle level with a slight tilt rearward

asked by: Joe D

0

Expert Reply:

Front and rear suspension hangers are not often the same height like this but they can be. If you have the hanger spacing right then what will happen is the center of the spring will be offset a little between the two hangers to compensate some for the height difference from the hangers/shackle straps.

The rear hanger will actually be closer to the front hanger than the rear spring eye so the shackles will be at an angle like in the drawing I have included. If this still does not get your spring to a position that is level enough for you then you could replace the rear hangers with shorter ones to get the spring closer to level.

I have included a link to the double-eye spring hangers that we carry for you.

expert reply by: Michael H

0

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Answer 1

You need to use square U-Bolts with having a square axle tube. Trying to use round U-Bolts you risk damaging both the bolts and the axle as it creates pressure points rather than distributing the load across the surface. We have a few different…

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Answer 2

The only real difference between your current 3-leaf springs and the 4-Leaf Double-Eye Spring for 3,500-lb Trailer Axles - 27&quot; Long #SP-210275 will be the thickness of the leaf spring stack. This will be 3/8&quot; thicker when…

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Answer 3

The varying heights of the hangers is all designed so that you end up with the leaf springs as level as possible and still end up a desired distance away from the trailer frame. It may seem odd, but the center hanger will stick down further because…

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Answer 4

Ff the springs you are installing are 25-1/4 inches, you would need to place the hangers between 24-3/4 and 25 inches apart. The shackle should be angled as the drawing shows in the attached helpful article, which should be toward the rear of the…

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Answer 5

The recommended clearance with leaf spring suspension on an unloaded trailer is between 2 - 2-1/2 inches. You should have sufficient clearance with your loaded trailer, as leaf springs only tend to deflect 1-1/2 inch when carrying a load.

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Answer 6

There actually is not a specific torque rating for shackle bolts like the Redline #166081 that you referenced. You just want to make sure that the bolt is long enough so that when installed you have at least 2 threads protruding from the nut. This…

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Answer 7

There is not a specific torque requirement for bolts like the Shackle Bolt #166081. You'll want to make sure that you're using a lock nut and ensure that the bolts you use are long enough so that when installed you will have at least…

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Answer 8

For your 2016 Grand Design Reflection 29RS, we have two possibilities for replacement springs that work for 4400-lb axles. You need to measure from the center of one eye of the leaf spring to the center of the other to get the proper length.…

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Answer 9

You can upgrade the 1750 lb leaf springs to 2500 lb leaf springs. You do want to keep in mind that the ride may be a bit stiffer since you are upgrading your springs to a higher capacity. Like you mention upgrading the springs will not give you a…

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Answer 10

The shackle straps do not have a taper and should not be over tightened to the spring or hanger because they are designed to move and pivot. Some bolts like #166081 will have a spline near the head to hold that shackle tightly on one end and you…

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Answer 11

I would be happy to help! Since your 2018 Keystone Cougar 311 RES 5th wheel with tandem 5200lb Dexter axles has the Dexter 072-097-00 leaf springs currently installed the 5-Leaf Double-Eye Spring for 6,000-lb Trailer Axles - 25-1/4" Long…

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Answer 12

The trick for hanger spacing is to subtract around 3/8 of an inch from the spring length (eye to eye) and then use that dimension for the hanger spacing on a single axle trailer. So for a 23-1/8 inch long leaf spring a spacing of 22-3/4 inches…

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Can Front and Rear Trailer Suspension Hangers be the Same Height with Off-Level Leaf Springs

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