[boynton]

I have this set up (6.0/6l90) in a 2wd truck and had to use a high hump Trans. I'm am currently building a 6.0/6l90/np205 in a 72 blazer. The back of the motor (where I set it up) is about 2-3 inches from the firewall. It looks like this is the best place for it so the trans fits in the high hump without issues and everything clears the mounts. You will also need a new cross member up front for the motor. The pan is super close to the cross member even though I swapped it. This is another reason my motor sits where it does. I agree with first c10. I am running 3.07s in both trucks. As he stated you can tune anything with these new motors/Trans. If you tune your minimum speed for your shifts it doesn't matter what setup you run, the 6 speed will work. As far as the shift linkage it is all electronic. I used lokar's linkage adapter.it hooks right up to your column. I am using a stock column as well. You can see the 2wd in the one owner short step.