GmTech14
Observer
What trans did you put behind it? I have a gmt400 ccsb 2500 with the 4l80e that Im getting ready to redo. I have a '92 Cummins 12v turbo with the 5speed (nv3500/4500 not sure)and I just picked up a 8.1ltr, one of those is going into the truck but I want to stick with an auto. The stock 4l80 will work with the 8.1 but I dont think I want to leave it behind the cummins.
My suburban is a gmt800 2500 with the 8.1/4l80e and I love it but the thought of a 12v in my truck makes me giggity.
I used my 4l80. It’s held up great. I can tell you if I redid it again I’d second guess the Cummins. It’s so dang big... it fits, but barely. Idk the dimensions of the 8.1 off the top of my head but a 6.0 would be the easiest and best bang for your buck imo. But.... the Cummins is pretty freaking cool, so there’s that.