Cat 777 questions on build

[9W Monighan]

I think you need to make the driveline like the 1:1 . Build the rear end from scratch with planetaries and have it be able to lock for the steep grades and make it very heavy so you have plenty of traction empty. Triple sevens are one of my favorite rigid frame trucks. I was up around Clearfield ,PA last week and stopped by a friends strip mine to take a look at his B-E 380W he has parked. ( He can't find an operator to run it. Keeps bugging me to come up on weekends and move some dirt )
Anyway, There was a couple 777's doing the job of the dragline hauling rock out of the pit and stock piling it on a huge spoil pile at least 150' high. What a site seeing them back out on the narrow pile about 200yds.