Just finished up my one ton swap awhe ago. The Dana 70 that a buddy gave me came off a drw. Now that I have all the kinks worked out I'd like to narrow the Dana 70 up and put rear disc brakes. Any help would be awsome. Oh yea it's on a 1990 k5 350/350/208 yes I know get rid of the 208 soon. 39.5x18x15 boggers