I have a 93 Chevy suburban 4x4 2500 with the 7.4L and 4L80-E transmission. My transmission is in need of a rebuild so I figure while I'm rebuilding it I might as well beef it up a bit. I work in the construction field and I'm constantly pulling heavy loads, ie.13,000lb mini excavator. So I'm wondering what would be some good upgrades to do it so I dont stress out my motor so bad. Anyone able to give me some tips? Also some inexpensive motor upgrades. Mainly worried about the transmission being as that's what's broken atm