I bought a new 05 btc5210 and had the followingproblems. shortley after taking delivery I had a terrible loud knocking over the cab every time i went over rough roads. Problem: the bolts holding the cab over were to long and the cabinetry holding the 24 "tv would strike the bolts (5 of those buggers) on rough terrain. Problem 2:this is a real feat of engineering: the battery compartment for the house battery had a side arm welded to the frame that prevents checking the water levels in the battery without taking it out thru the bottom of the rack, no small chore to be sure. How to sove: prob 1 removed tv, bored 4 in holes in tv floor over bolt heads and sawed them off ( located with mirror) and measure.. just shortened the bolts that were way to high for the installation.. eliminated problem immediatley.. Prob 2 used a sawzall to cut the strap iron bar that blocked the battery, moved it to the fron tof the rack, rewelded it to the exsting frame and also put a solid bottom in the battery box, spot welding it also.. whole job 43.00 and now i can remove the battery without any effort... also replaced valve stems with the solid brass variety from california... best move I made this yr make airing the tires near effortless... robert 435