April 2005, I left my then home ,on the Canadian side of the USA / Canada Border (Washington State /British Columbia) with my 1997 Ford 1/2 ton,extended Cab,Long box,6 cylinder Auto Transmission,Firestone Air bags on Rear suspention,16 inch 8 ply tires.
The Trailer (my brothers) had twin 3500 axles,10 ply tires,loaded with a 1947 John Deere D, Rear Rubber loaded with Calcium Chloride.
I picked my traveling time, so as to have minimum highway traffic,and much cooler ambient . After 750 miles,sun was up, I entered the west portal side of the Rocky Mountains and headed North East exiting the Rockies on the East side,with my trip ending at the Southern Terminus of the Alaska /Alcan Highway in Dawson Creek BC.
NOTE
The above is not coffee room talk,it's not he said she said.
Bob....