How to Increase Ground Clearance with Slipper Springs.

Published 12/07/2015

Products Featured in This Question

Dexter Trailer Axle Beam with EZ-Lube Spindles - 89" Long - 3,500 lbs

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U-Bolt Plate for 1-1/2" Square Trailer Axles with 1-3/4" Wide Springs

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U-Bolt Plate for 1-3/4" Diameter Axle, 1-3/4" Wide Spring - 3/8" Bolts - Galvanized

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1-1/2" Square Trailer U-Bolts (Qty 2)

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2" Square Trailer U-Bolt (Qty 2)

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U-Bolt Plate - 2" Wide, Square Trailer Axle - 1-3/4" Wide Spring - 9/16" Bolts

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Question:

I would like to move the axle on a boat trailer to below the slipper springs to increase ground clearance. Can this be done safely. Do you have a kit for a rectangular axle?

asked by: Karl

Expert Reply:

I can help you figure out how to get more ground clearance from your trailer.

All of our over under kits have only been tested on a double-eye spring setup, these are secured on both ends unlike slipper springs which are not. I would worry that it could become unsafe since the weight of the trailer was pulling on the axle and once you switch the location of it all the weight will now be pushing down on the rectangular axle.

While we don't have a specific over under kit for rectangular axles, I can help you put one together. You will need 4 u-bolts and 2 u-bolt plates. You will want to measure the width of the axle and match it up with the u-bolt dimensions. Some common sizes for u-bolts and plates are the 1-1/2 inch # SP01-120 and # 115983, the 1-3/4 inch # CE20022G, or the 2 inch # SP01-160 and # TRTP200175. I have linked the page for your convenience.

Another thing to keep in mind is after switching the location of your axle, you may have to drill an additional hole into your axle for the bolt from the spring to sit in.