Does it Matter Which Way a Double-Eye Trailer Leaf Spring Faces

Question

Question:

Are leaf springs directional. I am changing from single leaf to 4 leaf springs. There is a strap on one end of the leaf springs about the 2nd leaf and I see that also the manufacture has painted that eye on that end also. I am putting these on a tandam trailer.Which way should they hang.

asked by: Mike

0

Expert Reply:

If they are double-eye leaf springs, it should not matter which way they are facing. But if they are slipper springs, the eye end is at the front and the slipper is at the back. The springs that we carry are not marked as to which end is front and I have seen them either way on a trailer. I have included some links to suspension FAQs for you.

expert reply by: Michael H

0

David R.

2/15/2025

I'm changing my tandem leaf springs, was 4 leaf so I put 5 leaf,is any directions on the leaf to install back?or no matter how I installed

Kate F.

2/17/2025

@DavidR Hello David, Great question. Install the double-eye leaf springs with the curve facing up. One end attaches to a solid mount, and the other connects to a moving shackle so it can flex. Line up the center bolt with the axle, and if one side is longer, it usually goes toward the back. The shackle should swing backward when the spring flattens. Check that the bushings are in place and not worn out. What kind of trailer are you working on?

Answer 1

Yes, axle spread and wheel base by definition are the same measurements. You will measure from the center of one axle to the center of the 2nd axle to determine what you axle spread is. This may be difficult as some wheels and covers will make this…

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Answer 2

Hey Alex, I don't have a way to know exactly what leaf spring your NV19 trailer has/needs but there's a pretty good chance the part #e34SR is correct. 25-1/4 inch length is a very common length but so is 26 inch like the part #e94SR so you…

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Answer 3

Hey, Lance. The direction the springs are in doesn't matter. They can be to the front or to the rear of the axle and will perform the same either way. What kind of trailer are you working on?

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Answer 4

Hey Bob, the Progressive Dynamics Transfer Switch - Metal Case - 50 Amp - 120V/240V #PD52 (Alternatively PD52V) and the PD52DCS/PD52DCSV are both part of the PD52 series but there are some differences. Both share the same voltage rating and current…

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Answer 5

If I had to guess I would say you have a 3,500 lb axle on your Trailstar Trailer and could use the #AKIHUB-545-35-G-EZ-K. However, guessing is really all I can do without more information. To find the correct replacement part you will need to…

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Answer 6

Hey Ian, great to hear from you again! The differences between the MORryde CRE3000 #MR87ZR and AllTrek 4000 #MR89DR that fit a 33" wheelbase is the height between the hanger and equalizer bolts, and the amount of travel the suspension style will…

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Answer 7

There should be enough free play in the shackles to allow them to move. There is no specific torque rating for shackle bolts. The first thing you should make sure of is that the bolts you use are long enough so that when installed you will have at…

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Answer 8

In order for your trailer suspension to function properly you will want the angle of the shackle strap to be towards the axle so that as the leaf spring compresses and expands it will have somewhere it can go. Otherwise, you will not get the optimum…

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Answer 9

Well shackle length is mainly based on the height difference between the front and rear hangers. The rear hanger normally doesn't hang as low as the front so that the shackle can offset the difference and add the ability to move. What is the…

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Answer 10

To replace your 25-1/4" leaf springs on your Ranger RT188 boat trailer I recommend the 3-Leaf Double-Eye Spring item #e93SR. These have a 4,000 lbs capacity and three leafs. They will work great on your trailer. There are a few ways to gain…

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Answer 11

Yes, Lippert and Dexter 7k axles use exact same bearings. The only issue you might run into is a difference in grease seal size required. There are two sizes of grease seals that fit 7k axles and there isn't a rhyme or reason as to which you may…

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Answer 12

A brake axle would have brakes, either electric or hydraulic drum or disc brakes while an idler hub would have no brakes. Many times, a tandem axle trailer will have one braking axle and one idler axle. The 3500 lb capacity #35545I-EZ-89 axle you…

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Does it Matter Which Way a Double-Eye Trailer Leaf Spring Faces

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