Hey Rick, yes the Furrion Pure Sine Wave Inverter part # FIVBDP10A that you referenced can be used with a 100 amp hour Lithium battery. view full answer...
Yes, this could happen with a bent spindle. I recommend replacing the entire axle and not just a spindle. Just replacing the spindle can be problematic because the new spindle will need to be welded EXACTLY straight. The spindle needs to be centered and concentric. It will require a highly trained welder who has the correct jigs and afterward your spindles will have different lifespans.
You can find out what axles you have on your 2009 Fleetwood Pioneer 23FQ by checking your owner's manual... view full answer...