Taylorj, I sent you a PM, but, I'll post here as well:
We purchased ours in August of 2010. We too had loose brake wires (poorly crimped allowing a wire to jiggle loose) - I corrected that during a trip to Maine. Also had finger tightened bolts for both AC units - I fixed that too.
I heard back from Jayco today concerning my slide; they are aware of this issue and will be sending me three new heavy duty motors (the front bedroom is a different gear driven system).
Also, while I was crawling around underneath, I noticed some rattling in the heat duct which is exposed in the belly compartment. I unscrewed the vent cover and used a shop vac that sucked out several large pieces of construction debris along with lots of wood / metal shavings. Try getting a mirror and looking down and back inside your heat duct and look for blockage.
I have not had any issues with my landing gear; nor any visible leaks from poorly fitted pipes. The weather is still cold here. Once it warms up, I plan on pulling off any and all access panels to take a long, hard, look. I have most of the belly skins off anyway, so, it won't be too much more. I'll share my findings with you.