We recently ordered a new Bighorn 3400RE and especially ordered it with #7000 axles and G rated tires. Well, for some reason it arrived at the dealer with #6000 axles and E rated tires. The dealer immediately ordered another rig with the correct axles and tires and will swap them out when it arrives. I had some concerns about wheel alignment after the re-installation and e-mailed Heartland with these concerns and some questions. I received two phone calls from Heartland and they were sympathetic to my concerns and explained any diffwerences in the axles and how they will fit. I am quite impressed that two different people called to make sure my concerns were eased. This is much different than the MFG of our previous rig and the MFG of the axles on it too.