Yup, that trip earned the Suburban the name "Bubba Burb" It's technically just a 1/2 ton but I had the local spring shop rearch the springs and add in an extra main and another small leaf so it's pretty stiff, with the COE on the trailer and an engine in the back it only dropped about 4 inches. Also I've got brakes on the trailer and a controller on the burb. The burb pulled the big load no problem for about 6 hours.
MONGO


Mongo's Garage
Vintage GM Truck's & Parts
https://mongosgarage.com