The Dura-Torque Axle allows a four wheel trailer to be towed on 3 wheels for up to 100 miles at no more than 30 mph according to my manual. I experienced a blown rear curbside tire about 45 miles west of Amarillo, TX. with subsequent sheetmetal and outrigger damage. I towed at 40 mph but was careful of irregularities in the road like potholes so that my exposed disc rotor was not damaged.
'01 2500hd ext. cab, 8.1 litre gas, 5 sp. Allison auto
3.73 rear end
Mag-Hytec rear diff cover
Amsoil Dual by-pass oil filtration system
Amsoil synthetics all around
265 watt AM Solar, Inc. system