We can start with the over-under conversion kit since that is pretty simple. Since you have a 2-3/8" axle you will need the Dexter # K71-384-00. This will allow you to mount the leaf springs on top of the axle on your 2012 K-Z Spree.
Moving on to the brakes, I'm assuming with your 2-3/8" axle that you have 3,500 lb axles. Make sure to verify this information. Assuming that is the case, you will need the following:
-Electric Trailer Brake Kit - Self-Adjusting - 10" - Left and Right Hand... view full answer...
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