The part you linked to, # LC334785 does not have a speaker however, the Solera Power Awning Speaker Idler Head is, # LC342150 is available. We also have the Replacement Slip Ring Assembly, # LC330961 to replace the current slip ring assembly in your Solera Power Awning LED idler head. view full answer...
Feel free to email me back with the pictures you have but in general just a single roller like the # 295-000180 would be all that you'd need to level the one corner that is lower. I would recommend checking to make sure the tracks of your slide out aren't misaligned as that's a pretty common reason for sag. view full answer...
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...