[travelin'ging]

Super strange question but I had a tire losing some air and when the guys fixed it they told me the brakes were super hot and dragging. So I safely went down the the block to a big rig repair shop and asked if they could check it out after speaking with newell. They checked everything adjusted the shackles and greased the front suspension. All great but I have this strange fear now and bought a temp gun. After driving around the highway and city I stop test the temps and the fronts are around 240-300 depending on the type of driving and rears are 114-140. Am I just freaking my self out because its a new to me rv or is there something I need to seriously  have checked. 1980 newell