Do You Sell a Over-Under Conversion Kit for a 3" Diameter Axle for Lifting a Trailer?

Updated 10/07/2025 | Published 10/06/2025

Products Featured in This Question

Dexter Trailer Springs Over-Under Conversion Kit

(821)

$86.19

Dexter Trailer Springs Over-Under Conversion Kit

(821)

$96.35

Question:

Hello, I was looking at product number K71-384-00. I was wondering if they make this kit for a trailer with 3inch 7k axles? Thanks

asked by: Tyler W

Expert Reply:

They sure do Tyler! For a 3" diameter 7,000 lbs axle you'll want the Dexter Trailer Springs Over-Under Conversion Kit item # K71-385-00. This kit will allow you to move your axle below your leaf springs. The kit is sold individually so you'll need one per axle.

Does your Forest River have the standard double-eye leaf spring suspension set up?

You can add this information and any other questions you have where it says Reply to Jerred H and I'll be happy to answer them.

expert reply by: Jerred H

Over-Under Conversion Kit
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Tyler W.

10/7/2025

Thanks for the reply Jerred! I am actually looking at this kit for a triple axle equipment trailer I have. I see the kit comes with 1/2 U bolts. After measuring mine it appears mine are the 9/16. Is there any option to get it with 9/16? Thanks

Jerred H.

10/7/2025

@TylerW You're welcome! No, there's not but you won't need your old 9/16" u-bolts. The 1/2" u-bolts include with the item # K71-385-00 kit are rated for 3" diameter 7,000 lbs axles so you'll be good with the slightly smaller u-bolts.