Happy Easter all! What is this about welding the tube holes? My wheels are 4" wheels. Local tire shop will not install tires on 4" wheels when the tire spec.(215/85R16) stipulates 5"-7" wheels, and they will not install tubes, they say the mfgrs. do not recommend it. I can mount them myself but am wondering if this is a good idea? Are there other design issues as far as the bead area of the tires and wheels to be concerned with? Thanks, Scott