Over-Under Conversion Kit for 7k Axle With Slipper Springs

Products Featured in This Question

Dexter Trailer Springs Over-Under Conversion Kit

(726)

$83.02

Spring Seat for Typical 5,200-lb to 7,200-lb, Round Trailer Axles with 3" Diameter

(597)

$11.79

Question:

Do you have over/under conversion kits for 7000 , 3” axles that has slipper springs and 9” u-bolts?

asked by: Brian

Expert Reply:

Hi Brian; we do not have a kit that will work as is but the # K71-385-00 will do what you need with some extra steps. The spring seats will need to be fully welded to the axle since the slipper springs shift back and forth. You will also need to replace the U-bolts since they're only 7" long. I would not replace them using your existing U-bolts so you will need to find new ones. Unfortunately, we don't have any that are 9" long.

Also, the U-bolt plate is designed for 1-3/4" wide double eye springs and your slipper springs are likely 2" wide. This means you will need to make your own or find a different U-bolt plate to replace the one with the kit. Realistically, with the U-bolts and plate being replaced you're better off putting your own kit together. The only thing you really need to add in addition to the bolts and plate are the spring seats like # TRSS300.

expert reply by: Robin H

Brian G.

7/31/2024

It sounds to me that I would be better off rolling my axles over. Then all I would need to do is roll the brake housing and blot them back on

Robin H.

7/31/2024

@BrianG axles have a slight bend so you don't want to actually flip it over. It needs to stay in that same orientation or you're going to cause yourself problems you don't want to have.

Brian

8/7/2024

If I buy the spring seats and new U bolts, can I still use my same spring plates?

Robin H.

8/8/2024

@Brian yes but it will be up to you to determine if they're in good shape. In general it is best to just replace them while you're replacing the other components.

Brian G.

8/8/2024

@RobinH thank you for all the information and support