well a id systems power box will tell you everything you need to know! blown fuses are battery neglect, or shorts. i vote for the first one.. flat spots on the wheel are from dragging sticks or dirty warehouse... a three wheel kit might help, but equipment will only take care of you; if you take care of it!!!!


turn all your jacks down to 4-5 mph for a week, and see how much the abuse cuts in half also!

are you doing daily check list, and checkouts on each truck?
holding each driver responsible for the guy before and after them is not only smart, but some what of an osha law...
couple that with good, or really good maintenance. and your triples will be 8000 lbs again; no problem!