Should I Use Leaf Spring Spacers Lift Blocks on a Trailer to Raise It

Question

Question:

I need to lift this trailer do you have any leaf spring spacer for this Thank you

asked by: Jose

0

Expert Reply:

I do not recommend using a leaf spring spacer (lift block) on your trailer. The reason for this is because they can cause the trailer to become extremely bouncy and rough which is just going to put more stress on your suspension and wear out the trailer faster. Instead, I recommend using an axle flip kit so long as your axle is over the leaf spring pack. If so then you can use part # K71-384-00 if you have a 2-3/8" diameter axle or part # K71-385-00 if you have a 3" diameter axle. This kit will lift the trailer equal to the diameter of the axle and height of the leaf spring pack.

expert reply by: Conner L

0

Rick H.

7/13/2020

Trying to lift a fifth wheel that axles are already below spring from factory. All your articles direct to use the over/under kit but what about axles already below springs. Need about three to four inches of height with new truck. Thanks

Reply

Chris R.

7/17/2020

If your axles are already below the leaf springs, your best option will be to replace your existing hangers with longer ones. This is the most efficient way to raise the trailer. I have attached a link below that will take you to our full selection.

Helpful Links

dept-pg-trailer_leaf_spring_suspension-pt-hangers.aspx

Reply

Thomas B.

9/1/2021

@ChrisR Trying to lower overall height of a 3500 lb cargo trailer. I know smaller wheels is one way. Already have axle over springs. Is there a taller spring seat I could buy to pick up anther inch or so?

Reply

Victoria B.

9/10/2021

@ThomasB I don't know of any taller spring seats to help you lower your trailer, but shorter spring hangers may be an option. Just keep in mind that while changing components like tires you will want to keep your trailer's carrying capacity in mind. If you want to share why you're looking to lower your trailer, I'll see if there's another option that might work for you.

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See All (4) Replies to Rick H. ∨

Answer 1

When replacing shackle straps they should be the same length as the ones that were previously on your tandem axle trailer; replacing them with longer straps will result in additional play in your trailer suspension which could lead to additional…

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Answer 2

Hey Barrett, ideally you have 2 inches of clearance between the tire sidewall and the frame of the trailer. Where you are at now is going to be not quite enough clearance. We don't have any wheel spacers and honestly 1-1/2 inch wheel spacers…

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Answer 3

We have the Correct Track Lift Kit part #LC87120 that would work great for you. This is a single axle lift kit that would give you a lift of 2-1/4 inches.

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Answer 4

What you need is the Correct Track tandem lift kit part #RR23QX which will give your current suspension setup a lift of up to 2-1/4 inches. Aside from that there isn't a way to gain additional height from the trailer.

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Answer 5

What I recommend, if the trailer has round axles, is an over-under conversion kit. For 3 inch round axles use #K71-385-00 and for 2-3/8 inch round axles use #K71-384-00. This of course will only work if the leaf springs are mounted to the bottom of…

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Answer 6

If the shackle straps are within a 1/2" of what you normally had, say the 2-5/8" #115052 to 3-1/8" #TRSL313, you should be okay to install them. Just make sure that all of your shackle straps match though. If you are using the longer…

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Answer 7

Is the trailer sitting nose high or low? If the trailer isn't sitting perfectly level that is a typical cause for the shackle straps to flip upside down. Or if they are too short for the application that could cause a problem. I attached a link…

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Answer 8

The first thing I would check on your trailer is the capacity of the springs. You need to be sure the spring capacity is rated at 1/2 the axle capacity. That way 2 springs equal the capacity of the trailer axle for proper fit. Check the arch of the…

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Answer 9

The closest size we have to a 25.5" slipper spring is 24-5/8". Do understand that this may be the correct size for your application since as leaf springs sag and get flatter they also get longer in length. Also the amount of leaves a spring…

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Answer 10

A leaf spring should be replaced if it is badly rusted, has cracks or breaks in its leaves or if it is sagging. A 14-year-old travel trailer could certainly be in need of new leaf springs. The keys to selecting correct replacement leaf springs are to…

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Answer 11

Thanks for the additional information! It is always recommended to replace all your leaf springs at the same time so with this in mind you will want the 5-Leaf Double-Eye Spring item #e34SR. These are 6,000 lbs capacity springs with 5 leafs. From…

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Answer 12

Thanks for the pictures and the extra information! For your Grand Design 5th Wheel you will want the 5-Leaf Double-Eye Spring item #e34SR. This leaf spring is for 6,000 lbs axles and measures 25-1/4" long. It looks like your 5th wheel tops out…

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Should I Use Leaf Spring Spacers Lift Blocks on a Trailer to Raise It

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