The rear of the Dakotas frame kicks up so much the bed wouldn't line up unless you raise the bed wood. Then that messes up where it lines up with the tailgate. The axle in the truck now is the one that came in the 1/2 ton rear part of the frame and is under the axle if I can use the dakota axle it will be over the axle and will drop the rear of the truck 3" or 4" more inches.