That is a dodge 60, but to be honest thats a good thing as they match the width of a 14FF. The telltale signs are the bolts on top of the housing that held on the brake lines, dodge had a single brake line to the center of the axle and there it "T'ed" out to the calipers. To convert it to work with a chevy brake system you just throw away the dodge stuff and plug in your exiting brake lines, could'nt be easyer. Also the shock mounts are totally different. Just need to check the gear ratios, the truck has hydro boost as well!! Smoking deal, if it were closer or cheaper I would put it on my trailer in a minute.